Abstract: Urban public space bears complex demands of multi-stakeholders, so it is urgent to build a multi-stakeholder coordinated spatial governance mechanism. In view of the lack of long-term spatial governance system in the current community renewal in China, Shanghai has taken the lead in exploring the community planner system, trying to build a multi-coordinated sustainable community development mechanism. Taking the community planner system in Yangpu, Pudong and Xuhui districts of Shanghai as examples, this research firstly reviews the construction of the public participation system of community planners around the world, and elaborates the dual establishment context of social governance modernization and community participatory renewal of the community planner system in Shanghai, and the idea of “government-led and public participation”. Then it focuses on the analysis of the system characteristics and achievements of Yangpu, Pudong and Xuhui Districts respectively. Finally, it summarizes and puts forward the current public space governance mechanism of Shanghai community planner system from the aspects of management system, organizational structure and content implementation, and looks ahead to the next development vision.