UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2026

Commission File Number 001-38896

Luckin Coffee Inc.

(Exact Name of Registrant as Specified in Its Charter)

28th Floor, Building T3, Haixi Jingu Plaza

1-3 Taibei Road

Siming District, Xiamen City, Fujian

People’s Republic of China, 361008

+86-592-3386666

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		Luckin Coffee Inc.

Date:	March 27, 2026	By:	/s/ Jing An
			Name:	Jing An
			Title:	Chief Financial Officer

EXHIBIT INDEX

Exhibit No.		Description

99.1		Press Release

Luckin Coffee Inc. 6-K