Abstract: Objective To investigate the relationship between the elements of social integration and their effects on life quality among floating women in Chengdu city.Methods Respondent-driven sampling(RDS) was used to recruit 1 270 floating people in Chengdu and 667 floating women from the people sampled were investigated.The Medical Outcomes Study 12-Item Short-Form Health Survey(SF-12) was used to assess the floating women's quality of life(QOL).Based on a structural equation model(SEM),theoretical hypothesis on the relationship between social integration and QOL were tested.Results The total score of QOL for the floating women was 75.94±15.22.In the women,age had inverse correlation with Objective economic status,with a correlation coefficient of -0.732(P＜0.001).Moreover,age had positive effect on mental adaptation,with a standardized regression weight of 0.348.The results of SEM showed that Objective economic status had positive indirect effect on mental adaptation,with a standardized indirect effect of 0.099.The Objective economic status also showed a positive direct effect on physical component summary,with a standardized regression weight of 0.105.The goodness-of-fit indices of SEM showed CMIN/DF of 2.848,root mean square error of approximation(RMSEA) of 0.053,goodness-of-fit index(GFI) of 0.936,adjusted goodness-of-fit index(AGFI) of 0.917,and parsimony goodness-of-fit index(PGFI) of 0.718.Conclusion Social integration for the floating women in Chengdu is a combined process,in which mental adaptation could be directly achieved after the economic adaptation.The Objective economic status could directly affect the QOL of the floating women,but the effect of mental adaptation on QOL was not observed.