Objective To translate the Flow,Latch,Injury,Post feeding behavior (FLIP) Scale into Chinese and evaluate its reliability and validity.Methods The original scale was translated, back-translated, culturally adapted, and pre-tested using Beaton′s cross-cultural adaptation guidelines to establish the Chinese version of FLIP.A convenience sampling method was used to survey 380 postpartum women who underwent routine 42-day follow-up examnation from August to October 2024, to assess the scale′s reliability and validity.Results The Chinese version of the FLIP includes four dimensions (Flow, Latch, Injury, and Post-Feeding Behavior) with 17 items.Exploratory factor analysis extracted four common factors, with a cumulative variance contribution of 62.160%.Confirmatory factor analysis indicated a good model fit (χ2/df=1.184,RMSEA=0.030,RMR=0.025,GFI=0.929,CFI=0.983,NFI=0.902,IFI=0.983).The item-level content validity index ranged from 0.875 to 1.000, and the scale-level content validity index was 0.978.The total Cronbach′s α coefficient for the scale was 0.878, with a test-retest reliability of 0.876 and a split-half reliability of 0.820.Conclusion The Chinese version of FLIP demonstrates good reliability and validity, making it sui-table for self-assessment of breastfeeding dysfunction.