目的了解上海市嘉定区男男性接触人群(MSM,简称同志)对同志身份自我认同情况并分析其与相关行为的关联性。方法通过艾滋病自愿咨询检测(VCT)门诊、志愿者组织、同志人群活动场所及互联网等途径在嘉定区范围内招募MSM人群,采用面对面匿名问卷调查方式收集相关信息。结果153名调查对象中消极自我认同占75.8%,30岁以上年龄组消极自我认同率高于30及以下年龄组;从未结婚者消极自我认同率最低,已婚/再婚消极自我认同率其次,分居/离婚/丧偶消极自我认同率最高;初中及以下文化程度消极自我认同率最高,高中及中专其次,大专及以上文化程度消极自我认同率最低。消极自我认同者的高危女性性行为发生率高于积极自我认同者;消极自我认同者有固定同性性伴的率低于积极自我认同者。结论MSM人群同志身份消极自我认同率高。不同身份特征的同志人群消极自我认同率有所不同。消极自我认同的同志更不易有固定的同志性伴关系,同时与女性的无保护性行为的发生率也更高。 Objective To understand the status of self-identity of gay men in MSM (Jiamusi, MSM, Shanghai) and to analyze their association with related behaviors. Methods The MSM population was recruited in the Jiading District through HIV / AIDS voluntary counseling and testing (VCT) clinics, volunteer organizations, gay community venues and the Internet, and the relevant information was collected by face-to-face anonymous questionnaires. Results Negative self-identity among the 153 respondents accounted for 75.8%, negative self-identity among those over 30 years old was higher than those under 30 and lower. Negative self-identity was the lowest among those who never married, negative self-identity between married and remarried, Separated / divorced / widowed negative self-identification rate is the highest; Negative self-identification rate is the highest in junior high school and below, followed by senior high school and secondary technical school, and the lowest self-acceptance rate in college or above. Negative self-identity of women at higher risk of higher risk of sexual intercourse than those who self-identity; negative self-identity who have same-sex partners in the rate of less than active self-identity. Conclusion There is a high negative self-identity rate of gay people in MSM population. Negative self-identification rate of gay people with different identity characteristics is different. Negative self-identity of the comrades is more difficult to have a fixed relationship between the gay and lesbian women, while the incidence of unprotected sex with women is also higher.