Abstract: Objective To understand the correlated attitude and behavior of AIDS among men who had sex with men (MSM)and their sexual behavior.Then to provide basis for AIDS related health education for this population.Methods A nonymous questionnaires were filled by MSM in a bathing pond(sauna).Investigators were volunteers of MSM.Results Most of them have many male sex partners,and 84.8% of them have more than 2 male sex partners.Most of the sex manner were inserted anal sex and oral sex.The rate of using condom was rather low.They don.thave a enough awareness of the risky behaviors.Conclusion High-risk sexual behaviors were universal among MSM and potential HIV epidemic may occur in this population.It is imperative to carry out targeted interventions for MSM.