目的　了解深圳市某地吸毒人群与HIV感染相关的高危行为。　方法　对某地戒毒所 15 16名戒毒人员进行血清HIV抗体检测 ,并对 76例HIV阳性者进行问卷调查。　结果　HIV抗体检出率 5 0 1% ,戒毒人群中 15～ 3 5岁占 93 67% ;HIV感染者中 ,15～ 3 5岁占 90 0 5 % ,静脉注射吸毒者高达 98 68% ,共用注射器者占静脉吸毒者的80 2 6%。　结论　吸毒人群中存在引起HIV流行的高危行为 ,需尽快开展有效的干预措施 Objective To understand the high-risk behaviors associated with HIV infection among drug addicts in Shenzhen. Methods Serum HIV antibody was detected in 15 16 drug addicts in a drug rehabilitation center and 76 HIV positive persons were surveyed. Results The detection rate of HIV antibody was 501% and that of drug addicts aged 15-35 years was 93 67%. Among HIV-infected patients, 90% to 55% of HIV-infected patients and 98 68% of intravenous drug users were shared Syringes account for 80 2 6% of intravenous drug users. Conclusion There is a high risk behavior among HIV-infected people that causes HIV epidemic, and effective interventions need to be implemented as soon as possible