Objective  To explore HIV/AIDS -related knowledge and behaviors among commercial sxe workers(CSWs) in China CAREsites of Anhui province, and inform future intervention.

  Methods  CSWs were interviewed by trained local CDCstaff using structured questionnaire.

  Results  Atotal of 5.2 CSWs were interviewed and their responses to HIV/AIDS -related knowledge questions were 74.6% correct.Their percentage of correct answers about prevention methods, transmission and non-transmission routes were 68.5%, 88.4% and 73.2%, respectively.The knowledge about transmission routes was the highest among CSWs of 20-30 years old(89.5%); While the knowledge about non-transmission routes were the lowest among CSWs above 30 years old(58.0%).The top three most frequently referred to sources of HIVinformation were TV(85.9%), propaganda posters(57.8%), newspaper and magazine(56.8%).while the most commonly mentioned favorite ways of acquiring the knowledge were TV(76.8%), physicians(40.0%), and newspaper and magazines(31.1%).57.9% of the CSWs used condoms every time during sex with clients in the past 3 months; 13.4% used condoms every time whth longterm sex partners during the past 3 months.

  Conclusion  CSWs education should emphasize on non2transmission routes and prevention knowledge, and focus on those over 30 years old.Full use of mass media and physicians should be used in the education.Education should be tailored to the CSWs' need and the focus of education should be changed from knowledge disseination to behavior modification.