This paper is the first attempt to empirically examine the networking status among China’s AIDS NGOs. Social network analysis was used to examine four types of networks: Joint projects network, information exchange network, resource sharing network, and support network. Key actors in each network were highlighted. They were the ones in control of much information, in charge of coordination work among NGOs and having closing connections with the government and funding sources. In addition, all four networks had the core-periphery structure. Finally, the study suggested that geographic factor played an important role in communications and collaborations among NGOs.