Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

External Parties

Table of Contents

Page

Seller

1. Certificate Payment Report

Morgan Stanley

2. Collection Account Report

3. Credit Enhancement Report

Servicer(s)

4. Collateral Report

Saxon

5. Delinquency Report

Countrywide Funding Corporation

6. REO Report

7. Foreclosure Report

Underwriter(s)

8. Prepayment Report

Morgan Stanley

9. Prepayment Detail Report

Countrywide Securities

10. Realized Loss Report

11. Realized Loss Detail Report

Swap Counterparty

12. Triggers and Adj. Cert. Report

MorganStanleyCapitalSrv Inc

13. Additional Certificate Report

14. Other Related Information

Total Number of Pages

Dates

Contacts

Cut-Off Date:

January 01, 2007

Marion Hogan

Close Date:

January 26, 2007

Administrator

First Distribution Date:

February 26, 2007

(714) 247-6282

marion.c.hogan@db.com

Address:

Distribution Date:

May 25, 2007

1761 East St. Andrew Place, Santa Ana, CA 92705

Record Date:

April 30, 2007

Factor Information:

(800) 735-7777

May 24, 2007

Main Phone Number:

(714) 247-6000

https://www.tss.db.com/invr

Page 1 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Certificate Payment Report
Current Period Distribution -
			Prior						Current
			Prior

	Class	Original	Principal			Total	Realized	Deferred	Principal

Class	Type	Face Value	Balance	Interest	Principal	Distribution	Loss	Interest	Balance
			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1	FLT/WAC	309,100,000.00	282,410,772.70	1,283,792.30	6,738,440.66	8,022,232.96	0.00	0.00	275,672,332.04
A-1	FLT/WAC	309,100,000.00	282,410,772.70	1,283,792.30	6,738,440.66	8,022,232.96	0.00	0.00	275,672,332.04
A-2fpt	FLT/WAC	200,000,000.00	184,900,394.06	832,051.77	4,532,506.29	5,364,558.06	0.00	0.00	180,367,887.77
A-2a	FLT/WAC	205,435,000.00	185,377,438.45	829,564.04	6,020,754.73	6,850,318.77	0.00	0.00	179,356,683.72
A-2b	FLT/WAC	60,235,000.00	60,235,000.00	272,061.42	0.00	272,061.42	0.00	0.00	60,235,000.00
A-2c	FLT/WAC	145,950,000.00	145,950,000.00	665,288.75	0.00	665,288.75	0.00	0.00	145,950,000.00
A-2d	FLT/WAC	86,470,000.00	86,470,000.00	399,923.75	0.00	399,923.75	0.00	0.00	86,470,000.00
M-1	FLT/WAC	54,108,000.00	54,108,000.00	252,053.10	0.00	252,053.10	0.00	0.00	54,108,000.00
M-2	FLT/WAC	60,627,000.00	60,627,000.00	282,926.00	0.00	282,926.00	0.00	0.00	60,627,000.00
M-3	FLT/WAC	22,165,000.00	22,165,000.00	103,990.79	0.00	103,990.79	0.00	0.00	22,165,000.00
M-4	FLT/WAC	25,424,000.00	25,424,000.00	120,764.00	0.00	120,764.00	0.00	0.00	25,424,000.00
M-5	FLT/WAC	24,772,000.00	24,772,000.00	118,079.87	0.00	118,079.87	0.00	0.00	24,772,000.00
M-6	FLT/WAC	14,994,000.00	14,994,000.00	71,971.20	0.00	71,971.20	0.00	0.00	14,994,000.00
B-1	FLT/WAC	21,513,000.00	21,513,000.00	112,405.43	0.00	112,405.43	0.00	0.00	21,513,000.00
B-2	FLT/WAC	9,779,000.00	9,779,000.00	55,577.32	0.00	55,577.32	0.00	0.00	9,779,000.00
B-3	FLT/WAC	18,253,000.00	18,253,000.00	115,146.01	0.00	115,146.01	0.00	0.00	18,253,000.00
X	WAC/EXE	44,986,255.00	44,981,488.31	2,536,941.64	0.00	2,536,941.64	0.00	0.00	44,981,488.31
R	NPR/EXE	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	NPR	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
P	EXE	100.00	0.00	223,661.64	0.00	223,661.64	0.00	0.00	0.00


Total		1,303,811,355.00	1,241,960,093.52	8,276,199.03	17,291,701.68	25,567,900.71	0.00	0.00	1,224,668,391.84
Total





Page 2 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face Value
					Orig. Principal	Prior				Current
					Orig. Principal	Prior				Current
	Period	Period			(with Notional)	Principal			Total	Principal
Class	Starting	Ending	Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
			Method
					(1)	(1)	(2)	(3)	(4)=(2)+(3)	(5)

A-1	04/25/07	05/24/07	A-Act/360	617526AA6	309,100,000.00	913.655039	4.153324	21.800196	25.953520	891.854843
A-1	04/25/07	05/24/07	A-Act/360	617526AA6	309,100,000.00	913.655039	4.153324	21.800196	25.953520	891.854843
A-2fpt	04/25/07	05/24/07	A-Act/360	617526AB4	200,000,000.00	924.501970	4.160259	22.662531	26.822790	901.839439
A-2a	04/25/07	05/24/07	A-Act/360	617526AC2	205,435,000.00	902.365412	4.038085	29.307347	33.345432	873.058066
A-2b	04/25/07	05/24/07	A-Act/360	617526AD0	60,235,000.00	1,000.000000	4.516667	0.000000	4.516667	1,000.000000
A-2c	04/25/07	05/24/07	A-Act/360	617526AE8	145,950,000.00	1,000.000000	4.558333	0.000000	4.558333	1,000.000000
A-2d	04/25/07	05/24/07	A-Act/360	617526AF5	86,470,000.00	1,000.000000	4.625000	0.000000	4.625000	1,000.000000
M-1	04/25/07	05/24/07	A-Act/360	617526AG3	54,108,000.00	1,000.000000	4.658333	0.000000	4.658333	1,000.000000
M-2	04/25/07	05/24/07	A-Act/360	617526AH1	60,627,000.00	1,000.000000	4.666667	0.000000	4.666667	1,000.000000
M-3	04/25/07	05/24/07	A-Act/360	617526AJ7	22,165,000.00	1,000.000000	4.691667	0.000000	4.691667	1,000.000000
M-4	04/25/07	05/24/07	A-Act/360	617526AK4	25,424,000.00	1,000.000000	4.750000	0.000000	4.750000	1,000.000000
M-5	04/25/07	05/24/07	A-Act/360	617526AL2	24,772,000.00	1,000.000000	4.766667	0.000000	4.766667	1,000.000000
M-6	04/25/07	05/24/07	A-Act/360	617526AM0	14,994,000.00	1,000.000000	4.800000	0.000000	4.800000	1,000.000000
B-1	04/25/07	05/24/07	A-Act/360	617526AN8	21,513,000.00	1,000.000000	5.225000	0.000000	5.225000	1,000.000000
B-2	04/25/07	05/24/07	A-Act/360	617526AP3	9,779,000.00	1,000.000000	5.683334	0.000000	5.683334	1,000.000000
B-3	04/25/07	05/24/07	A-Act/360	617526AQ1	18,253,000.00	1,000.000000	6.308333	0.000000	6.308333	1,000.000000
X		MS07H1101	44,986,255.00	999.894041	56.393706	0.000000	56.393706	999.894041
R		MS07H1103	0.00	0.000000	0.000000	0.000000	0.000000	0.000000
R-X		MS07H1104	0.00	0.000000	0.000000	0.000000	0.000000	0.000000
P		MS07H1102	100.00	0.000000	2,236,616.400000	0.000000	2,236,616.400000	0.000000




Page 3 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


Distribution to Date -
									Current


	Original		Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal

Class	Face Value	Interest	Principal	Principal	Principal	Distribution	Loss	Interest	Balance
(1)	(2)	(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
A-1	309,100,000.00	5,317,636.71	32,596,444.20	831,223.76	33,427,667.96	38,745,304.67	0.00	0.00	275,672,332.04
A-2fpt	200,000,000.00	3,420,787.31	19,151,489.38	480,622.85	19,632,112.23	23,052,899.54	0.00	0.00	180,367,887.77
A-2a	205,435,000.00	3,449,536.93	25,439,880.91	638,435.37	26,078,316.28	29,527,853.21	0.00	0.00	179,356,683.72
A-2b	60,235,000.00	1,079,176.96	0.00	0.00	0.00	1,079,176.96	0.00	0.00	60,235,000.00
A-2c	145,950,000.00	2,638,978.71	0.00	0.00	0.00	2,638,978.71	0.00	0.00	145,950,000.00
A-2d	86,470,000.00	1,586,364.21	0.00	0.00	0.00	1,586,364.21	0.00	0.00	86,470,000.00
M-1	54,108,000.00	999,810.63	0.00	0.00	0.00	999,810.63	0.00	0.00	54,108,000.00
M-2	60,627,000.00	1,122,273.14	0.00	0.00	0.00	1,122,273.14	0.00	0.00	60,627,000.00
M-3	22,165,000.00	412,496.80	0.00	0.00	0.00	412,496.80	0.00	0.00	22,165,000.00
M-4	25,424,000.00	479,030.54	0.00	0.00	0.00	479,030.54	0.00	0.00	25,424,000.00
M-5	24,772,000.00	468,383.48	0.00	0.00	0.00	468,383.48	0.00	0.00	24,772,000.00
M-6	14,994,000.00	285,485.76	0.00	0.00	0.00	285,485.76	0.00	0.00	14,994,000.00
B-1	21,513,000.00	445,874.86	0.00	0.00	0.00	445,874.86	0.00	0.00	21,513,000.00
B-2	9,779,000.00	220,456.69	0.00	0.00	0.00	220,456.69	0.00	0.00	9,779,000.00
B-3	18,253,000.00	456,745.84	0.00	0.00	0.00	456,745.84	0.00	0.00	18,253,000.00
X	44,986,255.00	10,698,770.61	4,682.73	83.96	4,839.53	10,703,610.14	0.00	72.84	44,981,488.31
R	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
P	100.00	916,002.55	0.00	0.00	0.00	916,002.55	0.00	0.00	0.00

Total	1,303,811,355.00	33,997,811.73	77,192,497.22	1,950,365.94	79,142,936.00	113,140,747.73	0.00	72.84	1,224,668,391.84


Interest Detail -
	Pass	Prior Principal		Non-	Prior	Unscheduled		Paid or	Current
	Pass	Prior Principal		Non-	Prior	Unscheduled		Paid or

	Through	(with Notional)	Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid

Class	Rate	Balance	Interest	Interest SF	Interest	Adjustment	Interest	Interest	Interest
			(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
A-1	5.45500%	282,410,772.70	1,283,792.30	0.00	0.00	0.00	1,283,792.30	1,283,792.30	0.00
A-2fpt	5.40000%	184,900,394.06	832,051.77	0.00	0.00	0.00	832,051.77	832,051.77	0.00
A-2a	5.37000%	185,377,438.45	829,564.04	0.00	0.00	0.00	829,564.04	829,564.04	0.00
A-2b	5.42000%	60,235,000.00	272,061.42	0.00	0.00	0.00	272,061.42	272,061.42	0.00
A-2c	5.47000%	145,950,000.00	665,288.75	0.00	0.00	0.00	665,288.75	665,288.75	0.00
A-2d	5.55000%	86,470,000.00	399,923.75	0.00	0.00	0.00	399,923.75	399,923.75	0.00
M-1	5.59000%	54,108,000.00	252,053.10	0.00	0.00	0.00	252,053.10	252,053.10	0.00
M-2	5.60000%	60,627,000.00	282,926.00	0.00	0.00	0.00	282,926.00	282,926.00	0.00
M-3	5.63000%	22,165,000.00	103,990.79	0.00	0.00	0.00	103,990.79	103,990.79	0.00
M-4	5.70000%	25,424,000.00	120,764.00	0.00	0.00	0.00	120,764.00	120,764.00	0.00
M-5	5.72000%	24,772,000.00	118,079.87	0.00	0.00	0.00	118,079.87	118,079.87	0.00
M-6	5.76000%	14,994,000.00	71,971.20	0.00	0.00	0.00	71,971.20	71,971.20	0.00
B-1	6.27000%	21,513,000.00	112,405.43	0.00	0.00	0.00	112,405.43	112,405.43	0.00
B-2	6.82000%	9,779,000.00	55,577.32	0.00	0.00	0.00	55,577.32	55,577.32	0.00
B-3	7.57000%	18,253,000.00	115,146.01	0.00	0.00	0.00	115,146.01	115,146.01	0.00
X	67.67962%	44,981,488.31	0.00	0.00	0.00	0.00	0.00	2,536,941.64	0.00
R	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
R-X	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
P	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	223,661.64	0.00


Total		1,241,960,093.52	5,515,595.75	0.00	0.00	0.00	5,515,595.75	8,276,199.03	0.00



Page 4 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Collection Account Report
SUMMARY

	Group 2	Group 1	Total
Principal Collections	10,519,605.94	6,716,951.31	17,236,557.25
Principal Withdrawals	0.00	0.00	0.00
Principal Other Accounts	0.00	0.00	0.00
TOTAL NET PRINCIPAL	10,519,605.94	6,716,951.31	17,236,557.25
Interest Collections	5,821,068.23	2,540,463.63	8,361,531.86
Interest Withdrawals	-0.00	-0.00	-0.00
Interest Other Accounts	125,382.05	98,279.59	223,661.64
Interest Fees	-187,494.09	-65,784.25	-253,850.04
TOTAL NET INTEREST	5,758,956.19	2,572,958.97	8,331,343.46
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION	16,278,562.13	9,289,910.28	25,567,900.71




PRINCIPAL - COLLECTIONS

	Group 2	Group 1	Total
Scheduled Principal Received	348,993.46	134,749.82	483,743.28
Prepayments In Full	10,021,954.00	6,569,127.71	16,591,081.71
Curtailments	21,228.03	12,837.49	34,065.52
Liquidations	150,674.47	32,136.70	182,811.17
Insurance Principal	0.00	0.00	0.00
Repurchased Principal Amounts	0.00	0.00	0.00
Other Principal	0.00	0.00	0.00
Total Realized Loss Of Principal	-23,244.02	-31,900.41	-55,144.43
Delinquent Principal	-149,876.43	-79,975.75	-229,852.18
Advanced Principal	149,876.43	79,975.75	229,852.18
TOTAL PRINCIPAL COLLECTED	10,519,605.94	6,716,951.31	17,236,557.25




PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK




PRINCIPAL - OTHER ACCOUNTS

	Group 2	Group 1	Total
Closing Deposit	0.00	0.00	0.00
TOTAL OTHER ACCOUNTS PRINCIPAL	0.00	0.00	0.00






Page 5 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


INTEREST - COLLECTIONS

	Group 2	Group 1	Total
Scheduled Interest	5,998,380.73	2,630,865.95	8,629,246.68
Liquidation Interest	1,273.20	344.13	1,617.33
Repurchased Interest	0.00	0.00	0.00
Insurance Interest	0.00	0.00	0.00
Other Interest	0.00	0.00	0.00
Realized Loss of Interest	-0.00	-0.00	-0.00
Relief Act Interest Shortfalls	-0.00	-0.00	-0.00
Prepayment Interest Shortfalls	-10,255.25	-6,247.96	-16,503.21
Compensating Interest	10,255.25	6,247.96	16,503.20
Delinquent Interest	-2,989,603.38	-1,568,875.24	-4,558,478.62
Interest Advanced	2,811,017.68	1,478,128.79	4,289,146.47
TOTAL INTEREST COLLECTED	5,821,068.23	2,540,463.63	8,361,531.86




INTEREST - WITHDRAWALS

	Group 2	Group 1	Total
Nonrecoverable Advances
TOTAL INTEREST WITHDRAWALS	0.00	0.00	0.00




INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
	Group 2	Group 1	Total
Prepayment Charges	125,382.05	98,279.59	223,661.64

Net Swap Receipt	0.00	0.00	0.00
. a) Swap Payment	0.00	0.00	0.00
. b) Counterparty Payment	0.00	0.00	0.00
. c) Swap Termination Payment	0.00	0.00	0.00
. d) Defaulted Swap Termination Payment	0.00	0.00	0.00


TOTAL INTEREST OTHER ACCOUNTS	125,382.05	98,279.59	223,661.64




INTEREST FEES
INTEREST FEES
	Group 2	Group 1	Total
Current Servicing Fees	185,322.77	64,850.67	250,173.44
Current Trustee Fees	2,171.32	933.58	3,104.90
Wells Fargo Custodian Fees			0.00
LaSalle Custodian Fees			571.70
TOTAL INTEREST OTHER FEES	187,494.09	65,784.25	253,850.04



Page 6 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

Credit Enhancement Report

ACCOUNTS

Excess Reserve Fund

Begining Balance

0.00

Amount Deposited

0.00

Amount Withdrawn

0.00

Ending Balance

0.00

Swap Account

Begining Balance

0.00

Amount Deposited

0.00

Amount Withdrawn

0.00

Net SWAP Amount

0.00

Ending Balance

0.00

INSURANCE

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

Group 2

Group 1

Total

Overcollateralized Amount - Prior Period

44,981,488.31

Current Period Principal Realized Losses

55,144.43

Overcollateralized Amt-After Current Losses

44,926,343.88

Net Monthly Excess Cashflow

2,536,941.64

Extra Principal Distribution Amount

55,144.43

Overcollateralization Reduction Amount

0.00

Overcollateralized Amt - Ending

44,981,488.31

Overcollateralization Deficiency Amount

0.00

Overcollateralization Excess Amount

0.00

Specified Overcollateralization Amount

44,981,488.31

Page 7 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Collateral Report


COLLATERAL




		Group 2	Group 1	Total



Loan Count:


Original	4,560	2,464	7,024
Prior	4,397	2,337	6,734
Prefunding	0	0	0
Scheduled Paid Offs	-0	-0	-0
Full Voluntary Prepayments	-45	-31	-76
Repurchases	-0	-0	-0
Liquidations	-1	-1	-2
Current	4,351	2,305	6,656
Principal Balance:


Original	903,678,452.32	400,130,691.88	1,303,809,144.20
Prior	868,527,008.77	373,433,084.75	1,241,960,093.52
Prefunding	0.00	0.00	0.00
Scheduled Principal	-348,993.46	-134,749.82	-483,743.28
Partial Prepayments	-21,228.03	-12,837.49	-34,065.52
Full Voluntary Prepayments	-10,021,954.00	-6,569,127.71	-16,591,081.71
Repurchases	-0.00	-0.00	-0.00
Liquidations	-150,674.47	-32,136.70	-182,811.17
Current	857,984,158.81	366,684,233.03	1,224,668,391.84





PREFUNDING

	Group 2	Group 1	Total
Closing Date Deposit Amount	0.00	0.00	0.00

Page 8 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


CHARACTERISTICS
CHARACTERISTICS

	Group 2	Group 1	Total
Weighted Average Coupon Original	8.31106%	8.47393%	8.36105%
Weighted Average Coupon Prior	8.29562%	8.46089%	8.34565%
Weighted Average Coupon Current	8.28942%	8.45520%	8.33927%
Weighted Average Months to Maturity Original	354	354	354
Weighted Average Months to Maturity Prior	351	352	352
Weighted Average Months to Maturity Current	350	350	350
Weighted Avg Remaining Amortization Term Original	388	414	396
Weighted Avg Remaining Amortization Term Prior	386	412	393
Weighted Avg Remaining Amortization Term Current	385	410	392
Weighted Average Seasoning Original	5.41	5.60	5.47
Weighted Average Seasoning Prior	7.41	7.60	7.47
Weighted Average Seasoning Current	8.41	8.61	8.47

Page 9 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


ARM CHARACTERISTICS
ARM CHARACTERISTICS

	Group 2	Group 1	Total
Weighted Average Margin Original	6.57924%	6.19584%	6.46064%
Weighted Average Margin Prior	6.57871%	6.18892%	6.46000%
Weighted Average Margin Current	6.57609%	6.18818%	6.45885%
Weighted Average Max Rate Original	14.69961%	15.46380%	14.93600%
Weighted Average Max Rate Prior	14.68403%	15.45165%	14.91780%
Weighted Average Max Rate Current	14.68097%	15.44349%	14.91142%
Weighted Average Min Rate Original	8.16418%	8.46922%	8.25854%
Weighted Average Min Rate Prior	8.14898%	8.45681%	8.24273%
Weighted Average Min Rate Current	8.14526%	8.44876%	8.23698%
Weighted Average Cap Up Original	1.26730%	1.49681%	1.33830%
Weighted Average Cap Up Prior	1.26710%	1.49691%	1.33709%
Weighted Average Cap Up Current	1.26743%	1.49685%	1.33676%
Weighted Average Cap Down Original	1.26730%	1.49681%	1.33830%
Weighted Average Cap Down Prior	1.26710%	1.49691%	1.33709%
Weighted Average Cap Down Current	1.26743%	1.49685%	1.33676%




SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

	Group 2	Group 1	Total




Current Servicing Fees	185,322.77	64,850.67	250,173.44
Delinquent Servicing Fees	176,465.91	90,746.45	267,212.36
TOTAL SERVICING FEES	185,225.20	64,850.67	250,075.87


Compensating Interest	-10,255.25	-6,247.96	-16,503.20
Delinquent Servicing Fees	-176,465.91	-90,746.45	-267,212.36
COLLECTED SERVICING FEES	-175,067.92	-58,602.72	-233,670.64


Total Advanced Interest	2,811,017.68	1,478,128.79	4,289,146.47
Total Advanced Principal	149,876.43	79,975.75	229,852.18
Aggregate Advances with respect to this Distribution	2,960,894.11	1,558,104.54	4,518,998.65
Unrecovered Advances	0.00	0.00	0.00
Non Recoverable Advance	0.00	0.00	0.00
Servicer Escrow Advances	0.00	0.00	0.00




ADDITIONAL COLLATERAL INFORMATION
ADDITIONAL COLLATERAL INFORMATION
	Group 2	Group 1	Total
Prepayment Interest Shortfall (PPIS)	10,255.25	6,247.96	16,503.21
Compensating Interest	(10,255.25)	(6,247.96)	(16,503.20)
Net Prepayment Interest Shortfall (PPIS)	0.00	0.00	0.00





Page 10 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Delinquency Report

TOTAL
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		46,259,039.51	24,138,793.40	21,723,427.35	92,121,260.26
	% Balance		3.78%	1.97%	1.77%	7.52%
	# Loans		229	133	120	482
	% # Loans		3.44%	2.00%	1.80%	7.24%
FORECLOSURE	Balance	0.00	0.00	2,366,584.24	16,764,491.10	19,131,075.34
	% Balance	0.00%	0.00%	0.19%	1.37%	1.56%
	# Loans	0	0	7	75	82
	% # Loans	0.00%	0.00%	0.11%	1.13%	1.23%
BANKRUPTCY	Balance	522,315.18	104,247.44	698,206.64	340,175.66	1,664,944.92
	% Balance	0.04%	0.01%	0.06%	0.03%	0.14%
	# Loans	5	1	4	4	14
	% # Loans	0.08%	0.02%	0.06%	0.06%	0.21%
REO	Balance	0.00	0.00	0.00	53,766.91	53,766.91
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	1	1
	% # Loans	0.00%	0.00%	0.00%	0.02%	0.02%
TOTAL	Balance	522,315.18	46,363,286.95	27,203,584.28	38,881,861.02	112,971,047.43
	% Balance	0.04%	3.79%	2.22%	3.17%	9.22%
	# Loans	5	230	144	200	579
	% # Loans	0.08%	3.46%	2.16%	3.00%	8.70%

Page 11 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


GROUP 1
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		11,451,075.67	5,190,469.81	6,549,554.79	23,191,100.27
	% Balance		3.12%	1.42%	1.79%	6.32%
	# Loans		71	36	41	148
	% # Loans		3.08%	1.56%	1.78%	6.42%
FORECLOSURE	Balance	0.00	0.00	0.00	4,352,217.03	4,352,217.03
	% Balance	0.00%	0.00%	0.00%	1.19%	1.19%
	# Loans	0	0	0	21	21
	% # Loans	0.00%	0.00%	0.00%	0.91%	0.91%
BANKRUPTCY	Balance	166,393.61	104,247.44	231,551.69	67,247.27	569,440.01
	% Balance	0.05%	0.03%	0.06%	0.02%	0.16%
	# Loans	1	1	2	1	5
	% # Loans	0.04%	0.04%	0.09%	0.04%	0.22%
REO	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL	Balance	166,393.61	11,555,323.11	5,422,021.50	10,969,019.09	28,112,757.31
	% Balance	0.05%	3.15%	1.48%	2.99%	7.67%
	# Loans	1	72	38	63	174
	% # Loans	0.04%	3.12%	1.65%	2.73%	7.55%

Page 12 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


GROUP 2
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		34,807,963.84	18,948,323.59	15,173,872.56	68,930,159.99
	% Balance		4.06%	2.21%	1.77%	8.03%
	# Loans		158	97	79	334
	% # Loans		3.63%	2.23%	1.82%	7.68%
FORECLOSURE	Balance	0.00	0.00	2,366,584.24	12,412,274.07	14,778,858.31
	% Balance	0.00%	0.00%	0.28%	1.45%	1.72%
	# Loans	0	0	7	54	61
	% # Loans	0.00%	0.00%	0.16%	1.24%	1.40%
BANKRUPTCY	Balance	355,921.57	0.00	466,654.95	272,928.39	1,095,504.91
	% Balance	0.04%	0.00%	0.05%	0.03%	0.13%
	# Loans	4	0	2	3	9
	% # Loans	0.09%	0.00%	0.05%	0.07%	0.21%
REO	Balance	0.00	0.00	0.00	53,766.91	53,766.91
	% Balance	0.00%	0.00%	0.00%	0.01%	0.01%
	# Loans	0	0	0	1	1
	% # Loans	0.00%	0.00%	0.00%	0.02%	0.02%
TOTAL	Balance	355,921.57	34,807,963.84	21,781,562.78	27,912,841.93	84,858,290.12
	% Balance	0.04%	4.06%	2.54%	3.25%	9.89%
	# Loans	4	158	106	137	405
	% # Loans	0.09%	3.63%	2.44%	3.15%	9.31%

Page 13 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

REO Report

Loan Number

Original

Stated

Current

State &

First

Principal

Paid to

Note

LTV at

Original

Payment

Loan Group

Balance

Date

Rate

Origination

Term

Date

Became REO Property this Period:

2000196914 2

54,000.00

53,766.91

20-Oct-2006

9.190%

MO - 90.00%

360

20-Sep-2006

TOTAL

54,000.00

53,766.91

Page 14 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Foreclosure Report
Loan Number	Original	Stated		Current	State &		First
Loan Number	Original	Stated		Current	State &		First
&	Principal	Principal	Paid to	Note	LTV at	Original	Payment
Loan Group	Balance	Balance	Date	Rate	Origination	Term	Date
					Origination

Became Foreclosure Property this Period:
73409765 1	264,000.00	262,907.81	01-Nov-2006	7.475%	FL - 80.00%	360	01-Jun-2006
2000205628 2	76,500.00	76,210.49	01-Nov-2006	10.400%	OH - 90.00%	360	01-Sep-2006
2000205669 1	70,200.00	69,988.98	01-Dec-2006	11.475%	MI - 90.00%	360	01-Sep-2006
2000205673 1	63,750.00	63,524.25	01-Nov-2006	11.225%	MI - 85.00%	360	01-Aug-2006
73865278 1	303,750.00	303,278.87	01-Nov-2006	9.825%	CA - 90.00%	360	01-Sep-2006
73396939 2	430,000.00	429,144.11	01-Jan-2007	8.990%	CA - 83.50%	360	01-Sep-2006
73865750 2	275,000.00	273,676.42	01-Nov-2006	9.250%	NJ - 63.95%	360	01-Sep-2006
2000206938 2	132,000.00	131,461.02	01-Nov-2006	6.450%	NY - 80.00%	360	01-Sep-2006
73866630 2	388,000.00	386,913.10	01-Nov-2006	7.375%	NV - 80.00%	360	01-Oct-2006
73432808 2	400,000.00	398,886.53	01-Jan-2007	7.825%	CA - 80.00%	360	01-Sep-2006
73869470 2	146,720.00	146,401.98	01-Oct-2006	8.275%	GA - 80.00%	360	01-Oct-2006
73871967 1	215,050.00	213,730.86	01-Nov-2006	8.800%	FL - 85.00%	360	01-Oct-2006
73872727 1	270,000.00	269,744.53	01-Oct-2006	11.050%	CA - 90.00%	360	01-Oct-2006
73872743 2	85,500.00	85,204.41	01-Nov-2006	10.250%	IN - 90.00%	360	01-Oct-2006
73873615 2	598,500.00	597,446.79	01-Oct-2006	8.990%	CA - 95.00%	360	01-Oct-2006
73874199 1	344,000.00	342,966.47	01-Nov-2006	7.125%	CA - 80.00%	360	01-Oct-2006
73874951 2	404,000.00	403,045.51	01-Jan-2007	7.975%	CA - 80.00%	360	01-Oct-2006
73874999 2	51,000.00	50,838.87	01-Nov-2006	10.025%	MI - 85.00%	360	01-Nov-2006
73879224 2	55,920.00	55,847.11	01-Nov-2006	10.000%	OH - 80.00%	360	01-Oct-2006
73879312 1	352,700.00	351,660.99	01-Dec-2006	11.000%	MD - 84.99%	360	01-Oct-2006
73881424 2	149,400.00	149,149.18	01-Oct-2006	9.150%	FL - 90.00%	360	01-Oct-2006
73881712 2	320,000.00	320,000.00	01-Dec-2006	7.575%	CA - 80.00%	360	01-Oct-2006
73882944 2	320,000.00	319,291.82	01-Nov-2006	7.725%	CA - 80.00%	360	01-Nov-2006
73884280 2	218,400.00	218,084.02	01-Nov-2006	9.650%	AZ - 79.42%	360	01-Oct-2006
73885128 2	576,000.00	575,011.64	01-Jan-2007	7.700%	CA - 80.00%	360	01-Oct-2006
73887745 2	252,000.00	251,473.26	01-Nov-2006	7.925%	CA - 80.00%	360	01-Nov-2006
73888273 2	617,600.00	616,087.73	01-Dec-2006	7.850%	CA - 80.00%	360	01-Oct-2006
73888353 2	736,000.00	736,000.00	01-Dec-2006	6.750%	CA - 80.00%	360	01-Oct-2006
73889617 1	223,250.00	222,282.92	01-Nov-2006	8.500%	FL - 95.00%	360	01-Nov-2006
73890785 2	110,000.00	109,638.60	01-Dec-2006	9.838%	PA - 51.16%	360	01-Nov-2006
73891153 2	209,950.00	209,581.69	01-Jan-2007	9.000%	CA - 95.00%	360	01-Oct-2006
73892081 1	271,000.00	270,637.29	01-Dec-2006	9.450%	WA - 81.63%	360	01-Nov-2006
73894482 1	75,050.00	74,953.92	01-Dec-2006	9.600%	IN - 95.00%	360	01-Nov-2006
73894530 2	300,000.00	299,123.45	01-Jan-2007	7.225%	NJ - 80.00%	360	01-Oct-2006
73896242 1	172,000.00	171,461.21	01-Dec-2006	6.975%	CO - 80.00%	360	01-Oct-2006
73896666 2	231,920.00	231,919.98	01-Dec-2006	6.990%	CA - 80.00%	360	01-Nov-2006
73896946 2	247,500.00	246,148.56	01-Dec-2006	8.990%	CO - 90.00%	360	01-Oct-2006
73897298 1	180,000.00	179,778.08	01-Dec-2006	9.725%	CA - 75.00%	360	01-Nov-2006
73898186 2	324,000.00	323,374.23	01-Nov-2006	8.200%	GA - 80.00%	360	01-Nov-2006
73899410 1	391,500.00	390,727.72	01-Dec-2006	8.600%	CA - 88.57%	360	01-Oct-2006
73899970 1	234,000.00	233,700.27	01-Dec-2006	9.600%	MN - 90.00%	360	01-Nov-2006
73904203 2	213,592.00	212,938.37	01-Nov-2006	10.175%	FL - 80.00%	360	01-Nov-2006
73904259 2	163,800.00	163,526.35	01-Nov-2006	8.700%	OH - 90.00%	360	01-Nov-2006
73904259 2	163,800.00			8.700%	OH - 90.00%


Page 15 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Loan Number	Original	Stated		Current	State &		First
&	Principal	Principal	Paid to	Note	LTV at	Original	Payment
Loan Group	Balance	Balance	Date	Rate	Origination	Term	Date
					Origination
73904587 2
73904587 2	174,320.00	173,555.77	01-Nov-2006	8.475%	IL - 80.00%	360	01-Nov-2006

73904971 2	57,600.00	57,365.29	01-Dec-2006	8.800%	TN - 90.00%	360	01-Nov-2006
73905395 2	73,600.00	73,328.90	01-Nov-2006	9.400%	OH - 80.00%	360	01-Nov-2006
2000195742 2	114,950.00	114,369.86	09-Oct-2006	8.430%	VA - 74.19%	360	09-Sep-2006
2000195872 2	369,000.00	367,592.45	01-Oct-2006	9.920%	SC - 90.00%	360	01-Oct-2006
2000195927 2	63,000.00	62,719.64	18-Oct-2006	9.040%	SC - 90.00%	360	18-Sep-2006
2000195951 2	52,000.00	51,791.31	24-Dec-2006	9.540%	SC - 80.00%	360	24-Sep-2006
2000196033 2	84,800.00	84,417.14	01-Dec-2006	8.970%	OH - 80.00%	360	01-Oct-2006
2000196076 2	240,000.00	240,000.00	01-Oct-2006	7.580%	PA - 80.00%	360	01-Aug-2006
2000196222 2	64,800.00	64,549.54	21-Sep-2006	9.720%	IN - 90.00%	360	21-Sep-2006
2000196306 2	202,400.00	201,413.31	11-Sep-2006	8.990%	FL - 80.00%	360	11-Sep-2006
2000196431 2	320,000.00	318,516.52	01-Nov-2006	8.840%	FL - 74.77%	360	01-Oct-2006
2000196729 2	296,000.00	294,496.20	03-Oct-2006	8.390%	MA - 80.00%	360	03-Sep-2006
2000196732 2	459,000.00	458,410.82	16-Oct-2006	9.590%	MA - 85.00%	360	16-Sep-2006
2000196764 2	319,500.00	318,436.09	01-Oct-2006	8.240%	CO - 90.00%	360	01-Jun-2006
2000196882 2	56,000.00	55,777.64	05-Nov-2006	9.590%	MO - 80.00%	360	05-Sep-2006
2000196942 2	184,500.00	183,599.87	01-Dec-2006	8.590%	IL - 90.00%	360	01-Oct-2006
2000197188 2	247,500.00	247,213.50	15-Nov-2006	10.390%	FL - 90.00%	360	15-Sep-2006
2000197393 2	205,200.00	204,794.03	01-Nov-2006	8.590%	MN - 90.00%	360	01-Oct-2006
2000197406 2	178,500.00	177,715.85	01-Sep-2006	9.690%	MN - 83.02%	360	01-Sep-2006
2000197530 2	360,000.00	359,097.31	01-Nov-2006	8.190%	CA - 90.00%	360	01-Sep-2006
2000197604 2	123,924.00	123,238.60	01-Oct-2006	8.570%	TX - 80.00%	360	01-Sep-2006
2000197667 2	119,920.00	119,920.00	01-Oct-2006	7.440%	GA - 80.00%	360	01-Jun-2006
2000197791 2	423,750.00	422,186.20	01-Nov-2006	9.940%	NJ - 75.00%	360	01-Oct-2006
2000197811 2	128,000.00	127,767.73	01-Nov-2006	9.540%	NJ - 80.00%	360	01-Oct-2006
2000197846 2	277,600.00	277,600.00	01-Nov-2006	7.970%	CA - 80.00%	360	01-Sep-2006


TOTAL	16,659,416.00	16,617,642.96

Became Foreclosure Property in a Prior Period:
73861133 1	72,900.00	72,588.94	01-Nov-2006	11.250%	KS - 90.00%	360	01-Jun-2006
73859397 2	115,650.00	114,964.52	01-Nov-2006	9.250%	GA - 90.00%	360	01-Jul-2006
73863654 2	50,400.00	50,129.45	01-Nov-2006	9.250%	IN - 90.00%	360	01-Aug-2006
73418742 1	50,000.00	49,840.70	01-Nov-2006	10.200%	FL - 63.29%	360	01-Aug-2006
73432456 1	60,000.00	59,939.72	01-Nov-2006	11.250%	AZ - 75.00%	360	01-Sep-2006
73436216 1	360,000.00	359,454.03	01-Nov-2006	9.900%	CA - 80.00%	360	01-Sep-2006
73437864 1	110,000.00	109,822.86	01-Nov-2006	9.700%	WA - 89.80%	360	01-Sep-2006
73874375 2	396,000.00	395,373.52	01-Nov-2006	9.350%	CT - 90.00%	360	01-Oct-2006
73891321 1	280,000.00	279,226.61	01-Nov-2006	7.425%	HI - 80.00%	360	01-Oct-2006
73899554 2	228,000.00	227,532.23	01-Dec-2006	7.990%	CA - 80.00%	360	01-Nov-2006
73905147 2	64,800.00	64,736.05	01-Nov-2006	10.475%	IN - 90.00%	360	01-Nov-2006
73226678 2	50,022.00	49,823.75	16-Oct-2006	10.620%	IN - 85.00%	360	16-Aug-2006
73231207 2	680,000.00	680,000.00	01-Oct-2006	8.590%	CA - 80.00%	360	01-Aug-2006


TOTAL	2,517,772.00	2,513,432.38


TOTAL	19,177,188.00	19,131,075.34
TOTAL


Page 16 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Prepayment Report

VOLUNTARY PREPAYMENTS



		Group 2	Group 1	Total


Current


Number of Paid in Full Loans	45	31	76
Number of Repurchased Loans	0	0	0
Total Number of Loans Prepaid in Full	45	31	76
Curtailments Amount	21,228.03	12,837.49	34,065.52
Paid in Full Balance	10,021,954.00	6,569,127.71	16,591,081.71
Repurchased Loans Balance	0.00	0.00	0.00
Total Prepayment Amount	10,043,182.03	6,581,965.20	16,625,147.23
Cumulative


Number of Paid in Full Loans	207	157	364
Number of Repurchased Loans	0	0	0
Total Number of Loans Prepaid in Full	207	157	364
Paid in Full Balance	43,919,873.77	32,400,980.19	76,320,853.96
Repurchased Loans Balance	0.00	0.00	0.00
Curtailments Amount	185,055.12	60,537.28	245,592.40
Total Prepayment Amount	44,104,928.89	32,461,517.47	76,566,446.36

Page 17 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


VOLUNTARY PREPAYMENTS RATES



		Group 2	Group 1	Total





SMM	1.17%	1.77%	1.35%
3 Months Avg SMM	1.07%	1.92%	1.33%
12 Months Avg SMM	1.25%	2.12%	1.52%
Avg SMM Since Cut-off	1.25%	2.12%	1.52%



CPR	13.21%	19.31%	15.09%
3 Months Avg CPR	12.07%	20.79%	14.80%
12 Months Avg CPR	14.01%	22.71%	16.74%
Avg CPR Since Cut-off	14.01%	22.71%	16.74%



PSA	785.46%	1,121.48%	890.69%
3 Months Avg PSA Approximation	814.00%	1,366.79%	990.56%
12 Months Avg PSA Approximation	1,013.39%	1,598.25%	1,201.25%
Avg PSA Since Cut-off Approximation	1,013.39%	1,598.25%	1,201.26%

Page 18 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidation Balance)/(Beg Principal Balance - Sched Principal)

Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)

PSA Standard Prepayment Model: CPR/(0.20%*min(30,WAS))

Average SMM over period between nth month and mth month (AvgSMMn,m): 1 - [(1-SMMn)*(1-SMMn+1)*...*(1-SMMm)]^(1/months in period n,m)

Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)

Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.20%*Avg WASn,m))

Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m)

Weighted Average Seasoning (WAS)

Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.

Dates correspond to distribution dates.

Page 19 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Prepayment Detail Report

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

73219069 2		114,480.00	112,843.62	02-May-2007	8.840%	OH - 72.00%	Paid Off - 240	26-Jul-2006
73219069 2		114,480.00	112,843.62	02-May-2007	8.840%	OH - 72.00%	Paid Off - 240	26-Jul-2006
73863910 2		157,100.00	156,157.54	03-May-2007	8.500%	CO - 77.01%	Paid Off - 360	01-Aug-2006
73864742 1		63,000.00	62,624.54	08-May-2007	8.200%	MS - 70.00%	Paid Off - 360	01-Aug-2006
73866934 1		72,200.00	72,125.14	02-May-2007	10.300%	MI - 95.00%	Paid Off - 360	01-Oct-2006
73869302 1		99,750.00	99,398.79	01-May-2007	10.150%	KY - 95.00%	Paid Off - 360	01-Oct-2006
73871807 1		153,500.00	152,848.44	03-May-2007	8.600%	WA - 74.88%	Paid Off - 360	01-Oct-2006
73874255 1		376,722.00	376,101.14	03-May-2007	9.100%	NY - 95.00%	Paid Off - 360	01-Oct-2006
73879056 1		83,000.00	82,670.31	01-May-2007	8.925%	IL - 89.63%	Paid Off - 360	01-Oct-2006
73879216 1		324,000.00	323,114.37	15-May-2007	6.975%	WA - 90.00%	Paid Off - 360	01-Oct-2006
73881792 1		359,794.00	358,896.07	18-Apr-2007	7.300%	CA - 78.90%	Paid Off - 360	01-Oct-2006
73881992 1		160,000.00	159,878.49	14-May-2007	10.800%	NJ - 80.00%	Paid Off - 360	01-Nov-2006
73886825 1		139,500.00	139,084.63	02-May-2007	8.100%	MD - 90.00%	Paid Off - 360	01-Nov-2006
73889377 1		180,500.00	180,354.42	16-Apr-2007	11.120%	OR - 95.00%	Paid Off - 360	01-Oct-2006
73894538 2		608,000.00	606,999.25	25-Apr-2007	8.750%	CA - 80.00%	Paid Off - 360	01-Oct-2006
73894626 1		89,300.00	89,075.26	07-May-2007	10.350%	FL - 95.00%	Paid Off - 360	01-Nov-2006
73897066 1		209,000.00	207,910.30	01-May-2007	6.775%	CA - 51.10%	Paid Off - 360	01-Nov-2006
73898890 2		445,500.00	444,144.81	17-Apr-2007	9.450%	MD - 90.00%	Paid Off - 360	01-Nov-2006
73899546 2		184,000.00	183,748.03	01-May-2007	10.675%	AL - 80.00%	Paid Off - 360	01-Oct-2006
73899610 2		487,600.00	487,599.96	04-May-2007	8.525%	CA - 80.00%	Paid Off - 360	01-Nov-2006
73899730 2		136,161.59	135,544.19	01-May-2007	8.275%	PA - 80.00%	Paid Off - 360	01-Oct-2006
73899810 1		117,000.00	116,831.87	03-May-2007	8.675%	AZ - 58.50%	Paid Off - 360	01-Nov-2006
73901987 1		286,000.00	285,042.90	25-Apr-2007	8.990%	CA - 59.58%	Paid Off - 360	01-Nov-2006
73902203 1		181,600.00	181,368.15	02-May-2007	10.500%	AZ - 80.00%	Paid Off - 360	01-Nov-2006
73904619 1		255,000.00	254,544.64	14-May-2007	7.925%	MA - 56.67%	Paid Off - 360	01-Nov-2006
2000195843 2		117,562.00	117,183.87	11-May-2007	10.590%	GA - 86.00%	Paid Off - 360	01-Sep-2006
2000195995 2		61,520.00	61,195.46	10-May-2007	8.490%	NC - 80.00%	Paid Off - 360	01-Oct-2006
2000196052 2		264,000.00	263,055.43	01-May-2007	9.430%	CT - 60.00%	Paid Off - 360	01-Oct-2006
2000196058 2		63,920.00	63,694.13	18-Apr-2007	9.490%	OH - 80.00%	Paid Off - 360	17-Sep-2006
2000196153 2		60,000.00	59,747.36	17-Apr-2007	8.640%	PA - 48.00%	Paid Off - 360	01-Oct-2006
2000196156 2		127,500.00	126,841.75	14-May-2007	9.090%	PA - 85.00%	Paid Off - 360	01-Oct-2006
2000196214 2		90,000.00	89,419.47	11-May-2007	7.190%	IN - 90.00%	Paid Off - 360	27-Aug-2006
2000196524 2		279,000.00	279,000.00	09-May-2007	7.440%	IL - 88.57%	Paid Off - 360	01-Oct-2006
2000196553 2		108,000.00	107,510.00	14-May-2007	9.240%	WI - 90.00%	Paid Off - 360	01-Oct-2006
2000196568 2		174,250.00	173,567.09	14-May-2007	8.990%	IL - 85.00%	Paid Off - 360	01-Oct-2006
2000196592 2		135,500.00	134,774.15	07-May-2007	7.440%	IL - 64.52%	Paid Off - 360	01-Oct-2006
2000196595 2		128,000.00	127,371.14	19-Apr-2007	7.890%	MO - 80.00%	Paid Off - 360	01-Oct-2006
2000196599 2		307,000.00	305,515.11	07-May-2007	8.040%	KS - 89.77%	Paid Off - 360	01-Oct-2006
2000196656 2		180,000.00	179,061.46	19-Apr-2007	7.640%	MI - 80.00%	Paid Off - 360	15-Sep-2006
2000196836 2		84,000.00	83,767.59	30-Apr-2007	11.290%	MI - 70.00%	Paid Off - 360	03-Sep-2006
2000196990 2		220,160.00	219,063.97	18-Apr-2007	8.490%	MD - 80.00%	Paid Off - 360	01-Sep-2006


Page 20 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution


Loan Number		Original			Current	State &	Type Prepayment	First


&	Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Payment

Loan Group	Status	Balance	Amount	Date	Rate	Origination	Original Term	Date

2000197020 2		356,405.00	355,477.10	15-May-2007	10.190%	MD - 85.00%	Paid Off - 360	05-Oct-2006
2000197020 2		356,405.00	355,477.10	15-May-2007	10.190%	MD - 85.00%	Paid Off - 360	05-Oct-2006
2000197055 2		259,000.00	258,389.37	14-May-2007	7.520%	MD - 72.55%	Paid Off - 360	01-Oct-2006
2000197125 2		280,000.00	278,744.77	17-Apr-2007	8.980%	WA - 77.78%	Paid Off - 360	01-Oct-2006
2000197291 2		137,100.00	136,153.76	09-May-2007	7.540%	AZ - 69.95%	Paid Off - 360	01-Oct-2006
2000197395 2		141,750.00	141,136.64	10-May-2007	8.990%	MN - 90.00%	Paid Off - 360	01-Oct-2006
2000197497 2		232,000.00	231,077.64	14-May-2007	8.920%	WY - 79.18%	Paid Off - 360	01-Oct-2006
2000205463 1		409,500.00	408,755.32	26-Apr-2007	9.300%	NJ - 90.00%	Paid Off - 360	01-Aug-2006
2000205677 1		137,750.00	137,564.76	19-Apr-2007	10.300%	IL - 95.00%	Paid Off - 360	01-Aug-2006
2000205901 1		317,000.00	316,240.24	16-Apr-2007	8.350%	CA - 79.25%	Paid Off - 360	01-Aug-2006
2000205959 1		225,000.00	224,663.31	16-Apr-2007	9.950%	MD - 88.24%	Paid Off - 360	01-Aug-2006
2000206069 2		56,250.00	55,943.49	17-Apr-2007	10.400%	IL - 75.00%	Paid Off - 360	01-Sep-2006
2000206121 1		125,000.00	124,783.16	01-May-2007	9.450%	NJ - 41.67%	Paid Off - 360	01-Aug-2006
2000206233 2		200,000.00	199,276.09	30-Apr-2007	6.450%	IL - 81.97%	Paid Off - 360	01-Sep-2006
2000206370 1		230,000.00	228,858.81	19-Apr-2007	5.725%	CA - 51.69%	Paid Off - 360	01-Aug-2006
2000206372 2		483,000.00	482,035.94	19-Apr-2007	8.975%	MD - 75.00%	Paid Off - 360	01-Aug-2006
2000206385 2		378,500.00	377,432.22	19-Apr-2007	7.350%	WV - 70.09%	Paid Off - 360	01-Sep-2006
2000206491 1		293,250.00	292,051.14	08-May-2007	9.450%	IL - 85.00%	Paid Off - 360	01-Sep-2006
2000206533 1		170,000.00	169,290.41	02-May-2007	9.350%	NJ - 84.58%	Paid Off - 360	01-Sep-2006
2000206576 2		465,560.00	463,606.44	09-May-2007	8.875%	NY - 80.00%	Paid Off - 360	01-Oct-2006
2000206608 2		193,500.00	192,776.07	23-Apr-2007	9.875%	IL - 90.00%	Paid Off - 360	01-Sep-2006
2000206614 1		306,000.00	305,041.43	24-Apr-2007	6.975%	NJ - 60.00%	Paid Off - 360	01-Sep-2006
2000207014 2		123,250.00	122,796.10	30-Apr-2007	9.950%	IL - 85.00%	Paid Off - 360	01-Sep-2006
2000207143 2		76,410.00	76,324.40	23-Apr-2007	10.625%	OH - 90.00%	Paid Off - 360	01-Sep-2006
2000207169 1		132,000.00	131,354.02	10-May-2007	8.575%	NJ - 50.38%	Paid Off - 360	01-Sep-2006
2000207298 1		312,300.00	311,892.89	26-Apr-2007	9.550%	RI - 90.00%	Paid Off - 360	01-Oct-2006
2000207416 2		400,500.00	399,792.13	26-Apr-2007	8.975%	IL - 90.00%	Paid Off - 360	01-Sep-2006
2000207481 2		125,000.00	124,738.72	08-May-2007	8.400%	NJ - 43.10%	Paid Off - 360	01-Sep-2006
2000207944 2		190,320.00	189,615.42	30-Apr-2007	9.925%	IL - 80.00%	Paid Off - 360	01-Sep-2006
2000207997 1		405,000.00	403,524.06	11-May-2007	6.425%	CA - 42.63%	Paid Off - 360	01-Sep-2006
2000208029 2		428,400.00	427,840.28	18-Apr-2007	9.990%	NJ - 90.00%	Paid Off - 360	01-Sep-2006
2000208078 2		440,000.00	440,000.00	10-May-2007	7.525%	CA - 80.00%	Paid Off - 360	01-Oct-2006
2000208188 1		180,000.00	179,461.78	27-Apr-2007	6.650%	CA - 67.92%	Paid Off - 360	01-Oct-2006
2000208687 2		265,500.00	265,081.83	10-May-2007	8.900%	NJ - 90.00%	Paid Off - 360	01-Oct-2006
2000208908 1		195,000.00	193,776.92	10-May-2007	7.050%	MD - 70.91%	Paid Off - 360	01-Oct-2006
2000208982 2		236,000.00	235,077.07	20-Apr-2007	9.000%	MA - 80.00%	Paid Off - 360	01-Oct-2006
2000232317 2		51,000.00	50,833.14	19-Apr-2007	9.125%	IL - 53.68%	Paid Off - 360	01-Nov-2006


TOTAL	16,640,364.59	16,591,081.71

Page 21 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Realized Loss Report

COLLATERAL REALIZED LOSSES



	Group 2	Group 1	Total


Current





Subsequent Recoveries	0.00	0.00	0.00
Number of Loans Liquidated	1	1	2
Collateral Principal Realized Loss/(Gain) Amount	23,244.02	31,900.41	55,144.43
Net Liquidation Proceeds	127,430.45	236.29	127,666.74

Cumulative
Cumulative



Number of Loans Liquidated	2	2	4
Collateral Realized Loss/(Gain) Amount	57,008.26	73,078.05	130,086.31
Net Liquidation Proceeds	129,795.09	364,058.65	493,853.74
Cumulative Subsequent Recoveries	0.00	0.00	0.00

Page 22 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution


DEFAULT SPEEDS

	Group 2	Group 1	Total




MDR	0.02%	0.01%	0.01%
3 Months Avg MDR	0.01%	0.04%	0.02%
12 Months Avg MDR	0.01%	0.03%	0.01%
Avg MDR Since Cut-off	0.01%	0.03%	0.01%


CDR	0.21%	0.10%	0.18%
3 Months Avg CDR	0.09%	0.46%	0.20%
12 Months Avg CDR	0.06%	0.34%	0.15%
Avg CDR Since Cut-off	0.06%	0.34%	0.15%


SDA	123.62%	59.96%	104.18%
3 Months Avg SDA Approximation	57.92%	301.81%	133.20%
12 Months Avg SDA Approximation	46.59%	242.43%	107.10%
Avg SDA Since Cut-off Approximation	46.57%	242.46%	107.09%


Loss Severity Approximation for Current Period	15.43%	99.26%	30.16%
3 Months Avg Loss Severity Approximation	30.52%	16.72%	20.85%
12 Months Avg Loss Severity Approximation	30.52%	16.72%	20.85%
Avg Loss Severity Approximation Since Cut-off	30.52%	16.72%	20.85%

Page 23 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY

Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)

Conditional Default Rate (CDR): 1-((1-MDR)^12)

SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)*0.02%,MAX(0.03%,MIN(30,WAS)*0.02%-0.0095%*(WAS-60)))

Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)*(1-MDRn+1)*...*(1-MDRm)]^(1/months in period n,m)

Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)

Average SDA Approximation over period between the nth month and mth month:

AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)*0.02%,MAX(0.03%,MIN(30,Avg WASn,m)*0.02%-0.0095%*(Avg WASn,m-60)))

Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)

Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)

Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.

Dates correspond to distribution dates.

Page 24 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

Realized Loss Detail Report

Loan Number

Current

State &

Prior

Realized

Cumulative

Loan

Note

LTV at

Original

Principal

Loss/(Gain)

Realized

Loan Group

Status

Rate

Origination

Term

Balance

Revision

Loss/(Gain)

2000207239 1

12.850%

ID - 20.00%

360

32,136.70

31,900.41

2000197710 2

10.140%

GA - 90.00%

360

150,674.47

23,244.02

TOTAL

182,811.17

55,144.43

Page 25 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1

Mortgage Pass-Through Certificates

May 25, 2007 Distribution

Triggers and Adj. Cert. Report

TRIGGER EVENTS

Group 2

Group 1

Total

Trigger Event in effect?

Stepdown Date has occurred?

3M Rolling Avg.Bal 60+ days includes BK,FC,REO

45,090,286.06

Ending Balance

1,224,668,391.84

Prior Period Senior Enhancement Percentage

23.8829%

ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK

ADDITIONAL INFORMATION

Group 2

Group 1

Total

Basis Risk CarryForward Amount paid

0.00

Basis Risk CarryForward Amount unpaid

0.00

Current LIBOR Rate

5.320000%

Libor Rate Determination Date

04/23/2007

Next LIBOR Rate

0.000000%

Next Libor Rate Determination Date

05/23/2007

Current Swap LIBOR Rate

5.320000%

Page 26 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Additional Certificate Report

ADDITIONAL CERTIFICATE REPORT

		NET WAC Shortfall Prior (1)	Int on Prior SF (2)	Curr NET WAC SF (3)	Total NET WAC SF (1+2+3)	NET WAC Shortfall Paid	NET WAC Shortfall UnPaid


CLASS
	A-1	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	A-2fpt	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	A-2a	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	A-2b	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	A-2c	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	A-2d	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-1	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-2	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-3	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-4	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-5	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	M-6	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	B-1	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	B-2	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
	B-3	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00




Page 27 of 28

Morgan Stanley ABS Capital I Inc. 2007-HE1



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
May 25, 2007 Distribution

Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
	Group 2	Group 1	Total
Current Scheduled Payments	6,347,374.20	2,765,615.77	9,112,989.96
Current Scheduled Payments 1 Month Prior	6,413,721.44	2,818,303.03	9,232,024.48
Current Scheduled Payments 2 Month Prior	6,488,244.38	2,882,608.21	9,370,852.59
Current Scheduled Payments 3 Month Prior	6,610,494.43	2,965,195.30	9,575,689.73
Current Scheduled Payments 4 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 5 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 6 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 7 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 8 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 9 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 10 Month Prior	0.00	0.00	0.00
Current Scheduled Payments 11 Month Prior	0.00	0.00	0.00





Sched. Payments for 60+Day Delinquent Loans	383,062.44	134,935.15	517,997.60
Sched. Pmts - 60+Day Delinquent Loans, 1 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 3 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 5 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 7 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 9 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior	0.00	0.00	0.00
Sched. Pmts - 60+Day Delinquent Loans, 11 Month Prior	0.00	0.00	0.00





Page 28 of 28

Morgan Stanley ABS Capital I Inc. Trust 2007-HE1 10-D