近年来,男男性行为人群(Men who have sex with men,MSM)感染艾滋病病毒(Human Immunodeficiency Virus,HIV)的人数出现快速增长,成为艾滋病(Acquired Immune Deficiency Syndrome,AIDS)疫情上升的主要原因之一。MSM具有高度隐秘性特征,一般情况下不易接触到该群体,通过常规的面对面实施健康宣教效果不明显。随着互联网的普及,越来越多的MSM使用互联网来寻找性伴。为了探讨和评价利用网络对MSM进行针对性干预的可行性,对利用网络对MSM开展艾滋病知识干预的效果进项评估。 In recent years, there has been a rapid increase in the number of people who have sex with men (MSM) infected with HIV, which is one of the major causes of the rising AIDS (Acquired Immune Deficiency Syndrome) . MSM has a high degree of covert characteristics, in general, is not easy to reach the group, through the implementation of health education through conventional face to face effect is not obvious. With the popularity of the Internet, more and more MSMs use the Internet to find their partners. In order to explore and evaluate the feasibility of targeted interventions on MSM by using the Internet, we evaluate the effect of network intervention on MSM.