目的　了解汕头市吸毒人员HIV感染情况及相关的危险行为。方法　对 2 0 0 1- 2 0 0 3年进入汕头市某戒毒所的戒毒人员及公安部门抓捕的部分吸毒人员进行面对面问卷调查 ,并采集静脉血进行抗 -HIV检测。结果　吸毒人员HIV抗体的阳性率为 0 6 9% ,静脉注射吸毒的比例 4 0 0 % ,其中共用注射器者占11 80 %。有非婚性行为的占 2 0 2 0 % ,安全套的使用率占 2 0 70 %。结论　汕头市吸毒人员艾滋病的感染率较低 ,且大多为流动人员。吸毒人员对艾滋病高危行为的认知水平不高 ,存在引起HIV流行的高危行为 ,需抓住时机 ,加强对吸毒人员及流动人口预防艾滋病的宣传教育和行为干预 Objective To understand HIV infection among drug addicts in Shantou City and related dangerous behaviors. Methods A face-to-face questionnaire was conducted among drug addicts who were admitted to a drug rehabilitation center in Shantou and some drug users arrested by the public security department in 2000-2003. Venous blood was collected for anti-HIV testing. Results The positive rate of HIV antibody among drug addicts was 0.669%, and the proportion of intravenous drug abuse was 400%. Among them, 1180% shared syringes. Non-marital sex accounts for 20% and condom use 20%. Conclusion The infection rate of AIDS among drug addicts in Shantou City is relatively low, and most of them are migrant workers. Drug addicts are not aware of the high-risk behavior of HIV and there are high-risk behaviors that cause the HIV epidemic. They need to seize the opportunity to step up publicity, education and behavior interventions for HIV / AIDS prevention among drug users and migrants