Abstract: Objective To investigate the status quo of using condom in commercial sexual activities in Baoshan District of Shanghai, and find out the influence factors for the use of condom, so as to provide intervention methods of promoting the use of condoms.Methods By the cluster sampling method a survey was conducted on 4 large entertainment places and 18 small ones in integrated areas of urban and rural town. A face to face survey by self made questionnaire was conducted on 125 female service personnel.Results The correctness rate among respondents was low for the options in the questionnaire concerning the use and the skill in the use of condom. And 48.80% of interviewees said that they did not use condom each time, during the past month. The most important reason was their guests did not like to use a condom. And the boss did not support and encourage using condom.The outcome of univariate analysis showed that condom use efficacy was closely related to whether it was used each time during the past month,then connecting with living births,drinking alcohol,condom accessiblity and condom use skill and so on.The results of line stepwise regression found that frequency of drinking alcohol,condom accessiblity,monthly income and smoking were the significant predicting variables of condom use efficacy.Conclusion Condom use skill and efficacy in female personnel of entertainment places should be improved.