Objective To understand HIV/AIDS knowledge and risk behaviors among six different populations in Baoji,and provide basis for AIDS prevention and control and intervention strategies development.Methods According to the national AIDS sentinel surveillance program requirements,questionnaire survey and antibody detection of HIV,HCV and syphilis were carried out in six different populations.Results Awareness rates of AIDS related knowledge were above 85%in maternal (PRG),patients of sexual transmitted disease (STD),drug addicts (DUS)and men having sexism men (MSM).The rates were less than 80%in female sex workers (FSW) and migrant populations (MPO),the difference had statistically significant (P<0.05).HIV antibody positive rate was 1.75%in MSM,and 0.25%in STD while no detection in other populations.Syphilis antibody positive rate in MSM was the highest,accounted of 3.25%,and followed by 3.00% in DUS.HCV antibody positive rate in DUS was the highest,accounted of 49.50%.The proportions of consistent condom use in DUS and FSW were 3.77% and 21.25%.The proportion of consistently using condom during anal sex among MSM was 45.09%.Conclusion There are many risk factors involved in the spread of HIV,HIV infection is spreading among high-risk populations in Baoji.It is necessary to reinforce health education and behavioral intervention among high-risk populations.%目的了解宝鸡市6类人群艾滋病知识及相关高危行为，为艾滋病综合防治、制定干预策略提供科学依据。方法根据全国艾滋病哨点监测方案要求，对6类人群进行问卷调查和HIV、HCV及梅毒抗体检测。结果孕产妇（PRG）、性病门诊就诊者（STD）、吸毒者（DUS）、男男性接触者（MSM）4类人群艾滋病知识知晓率较高（85％以上），暗娼（FSW）、流动人群（MPO）艾滋病知识知晓率较低（不到80％），差异具有统计学意义（P＜0.05）。HIV抗体阳性检出率：MSM为1.75％，STD为0.25％，其他人群未检出；梅毒抗体阳性检出率最高的是MSM人群，为3.25％，其次是DUS人群，为3.00％；HCV抗体阳性检出率最高的是DUS人群，为49.50％。吸毒人群和暗娼每次性行为都使用安全套的比例分别为3.77％和21.25％，男男性行为者肛交时每次都用安全套的比例为45.09％。结论多种HIV传播的危险因素并存，宝鸡市HIV感染仍呈蔓延扩散之势，应进一步加大健康教育和有效干预措施的力度及覆盖面。
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