Abstract: Objective To understand the HIV detection rate and its influencing factors among university MSM students in Chengdu,and to provide a guidance for the establishment of health education strategies of AIDS prevention in universities.Methods Respondent-driven sampling (RDS) was involved in this study during July to December in 2016.One-to-one questionnaire survey was conducted among 254 university MSM students in Chengdu.Descriptive analysis was for qualitative data while single factor analysis and unconditional Logistic regression analysis were carried out on the influencing factors.Results The HIV detection rate was 35.4% (90/254) in the latest one year,in which 65.4% (166/254) of them had a clear HIV test willingness,and 37.8% (96/254) were aware of the knowledge and value of HIV test.Among them,61.4% (156/254) were willing to select HIV test institutions and 19.7% (50/254) tended to self-test.In the latest month,the rate of high-risk sexual behavior was 15%(38/254),and 82.3% (209/254) of them had a strong risk consciousness.With non-conditional Logistic regression analysis,variables which included the sense of risk,having high-risk sexual behavior in the latest month,test willingness,whether the people around having tested,main approach of looking for sexual partners and knowing Chengdu gay bar finally entered the model.Conclusion The HIV detection rate of Chengdu university MSM students is low,suggesting that the influencing factors should be targeted,behavior intervention be strengthened,MSM students be motivated to participate in test,and the coverage of HIV test should be expanded to prevent the AIDS epidemic worsening.