The Chinese government uses legal registration to manage and control the rise of social organizations. To avoid negative government attention, organizations might be expected to actively pursue such registration. However, in-depth field research of Chinese NGOs in three issue areas (environmental protection, HIV/AIDS prevention, and gay and lesbian rights) reveals that this is not always the case. There are many conflicting political and economic incentives for both NGOs and government, complicating understandings of social organization registration in China. By shedding light on the process of registration, this article reveals the complexities of state–society relations and demonstrates the difficulties for social organizations to avoid significant government interference.