v3.26.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document and Entity Information  
Document Type 20-F
Document Registration Statement false
Document Period End Date Dec. 31, 2025
Entity Registrant Name Luckin Coffee Inc.
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Title of 12(g) Security American depositary shares, each ADS represents eight Class A Ordinary Shares, par value US$0.000002 per share
Entity Address, Postal Zip Code 361008
Trading Symbol LKNCY
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 28th Floor, Building T3, Haixi Jingu Plaza
Entity Address, Address Line Two 1-3 Taibei Road
Entity Address, Address Line Three Siming District
Entity Address, City or Town Xiamen City
Entity Address, Country CN
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Auditor Name BDO China Shu Lun Pan Certified Public Accountants LLP
Auditor Firm ID 1818
Auditor Location Shanghai, China
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Entity Shell Company false
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Central Index Key 0001767582
Amendment Flag false
Entity File Number 001-38896
Document Accounting Standard U.S. GAAP
Class A ordinary shares  
Document and Entity Information  
Entity Common Stock, Shares Outstanding 2,158,141,800
Class B ordinary shares  
Document and Entity Information  
Entity Common Stock, Shares Outstanding 136,172,004
Convertible senior preferred shares  
Document and Entity Information  
Entity Common Stock, Shares Outstanding 295,384,619
Business Contact [Member]  
Document and Entity Information  
Entity Address, Postal Zip Code 361008
Entity Address, Address Line One 28th Floor, Building T3, Haixi Jingu Plaza
Entity Address, Address Line Two 1-3 Taibei Road
Entity Address, Address Line Three Siming District
Entity Address, City or Town Xiamen City
Entity Address, Country CN
Contact Personnel Name Ms. Jing An
Country Region 86
City Area Code 592
Local Phone Number 3386666
Contact Personnel Email Address ir@lkcoffee.com