This article uses a case study to analyse the fissures between human rights advocates and NGO practitioners. Since 2009, the Open Constitution Initiative, an organization run by human rights advocates, has been campaigning for migrant children's right to attend local schools. While fragmented resistance on the same issue has long existed in activities organized by migrant community NGOs, there has been almost no cooperation between the two parties during the campaign. Based on ethnographic research, I elaborate on how these two groups of activists differ in their strategies and goals, and how their choices are related to their understanding of political struggle and political transformation. I contend that this case provides a new lens through which to view the recent decline in some human rights activism in China, and illustrates the importance of investigating the internal structure of civil society.