Sub-district and community are the basic units for daily life of residents and important platform of social governance, and public service facilities at sub-district and community level are important carrier of urban basic public services. From the perspective of "service supply" and "governance collaboration", this paper reveals the shortages and problems in the planning, construction, and management of basic public service facilities at present, explores the public service facilities planning model and implementation policy mechanism coupling the grassroots social governance unit and the basic public service unit, thus proposing the construction of "20-minute sub-district public service circle" and "10-minute community life service circle" through the construction of service center at sub-district and community level, making up the shortage of grassroots public service facilities, optimizing the structure of urban grassroots space organization, as well as promoting the integration of urban planning and social governance.