Abstract: Beijing gradually shifts from large-scale rapid urban construction to small-scale progressive urban regeneration. Under that background and based on the research and practice of the team in recent years, this paper first explores the routine of public spaces, and considers that it is created by the residents' active behavior and informal activities, and become the source of urban vitality. Therefore, this paper points out that community building is the main mode of urban public space micro-regeneration, and the design intervention based on community building has become a platform for designers, city managers and residents to communicate. In addition, it proposes the approach of design intervention based on the guided participation in community culture, balanced benefits and appeals and joint participation in functional graft; then discusses the process features of the design intervention and the construction conception of related platforms, which may provide a useful reference for the similar practice.