Objective To evaluate the prevalence and associated risk factors of stress urinary incontinence (SUI) in adult women in Xinjiang.Methods In the cross-sectional study,3403 Uygur women aged over 20 years were interviewed through a questionnaire of International Consuhation on Incontinence Questionnaire Female Lower Urinary Tract Symptoms Module (ICIQ-FLUTS) and the adult questionnaire were used in our research.All parts of the content were according to the characteristics of women in Xinjiang and the purpose of our research.The risk factors were studied by Logistic regression analysis.Results The prevalence of urinary incontinence (UI) was 4l.96％ (1428/3403) and 28.21％ (960/3403) of SUI in Uygur women.In multivariate logistic regression analysis,the risk factors of SUI are body mass index (OR =1.672,95％ CI:1.082-2.584),parity (OR =5.092,95％ CI:3.889-6.666),neonatal birth weight (OR =5.623,95 ％ CI:3.335-9.480),the mode of delivery (OR =2.247,95 ％ CI:1.634-3.090),the lateral episiotomy (OR =4.448,95％ CI:3.112-6.357),menopause (OR =5.145,95％ CI:3.613-7.328),chronic pelvic pain (OR =3.869,95％ CI:1.051-14.250),pelvic organ prolapse (OR =3.501,95％ CI:2.508-4.887).Conclusion The incidence of SUI is related with multiple factors,especially with obesity and the obstetric factor.