Abstract: This paper explores the action logic and strategy of the main participants in Guangzhou Happy Community Construction project from the perspective of project system and with reference to research methods of practical sociology. As the project owner, the Bureau of Civil Affairs of Guangzhou Municipality acts as project planner, resource distributor,organizer and coordinator, and its actions follow the logic of benefit and efficiency. District civil affairs bureaus and sub-district offices, as the project packers, play a role to reallocate resource and transfer information, which follows the logic of task completion and project developing. Due to their different cognition of the whole project and personal working attitude, the community committees adopt action strategiesfor community construction in the competition for the packaged projects. Their action strategies can be roughly divided into 3 types: proactive, perfunctoryand complaining.This project-based community construction, to a certain extent, achieves the aim of locating community demand as the work focus and improves the efficiency and effect of community construction. However, this operation mode is restricted and influenced by the bureaucracy and project system in the reality. The divergence of the interests of the participants leads to the alienation of the project objectives, and also brings a cumulative gap of wealth to the grassroots community.

Key words: urban communities, community construction, project system