v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of long-lived assets other than goodwill (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES        
Impairment loss of long-lived assets ¥ 8,500 $ 1,212 ¥ 8,925 ¥ 5,229
Luckin coffee express machines        
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES        
Impairment loss of long-lived assets       ¥ 5,200
Luckin Tea        
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES        
Impairment loss of long-lived assets ¥ 8,500   ¥ 8,900