Abstract: The Ministry of Civil Affairs proposed that “through the establishment of township (street) social work stations, enhance the ability of grass-roots civil affairs services, open up the last meter of service for the people, and explore feasible paths to solve the shortage of grass-roots civil affairs service capabilities”, which is an important measure to promote the innovation of grass-roots governance in China. All provinces and municipalities directly under the Central Government actively respond to the call of the Ministry of Civil Affairs and formulate standards for the construction of social work stations according to the actual situation in various places. This paper is encoded according to the text content of the “Notice of the General Office of the Ministry of Civil Affairs on Accelerating the Construction of Township (Street) Social Work Stations”, and with the help of the grass-roots social governance innovation perspective and the policy innovation-diffusion analysis framework, the ATLAS.ti 9 software is used to analyze the latest social work station policy innovation and diffusion mechanism that has been officially introduced in various provinces and municipalities directly under the Central Government. The study found that the internal driving force of the construction of social work stations is the internal driving force of grass-roots social governance innovation, which is reflected in the reversed transmission mechanism under the improvement of grass-roots social governance capabilities, the guidance mechanism for the upgrading of people’s needs under the change of the main contradictions in society, and the driving mechanism of “pairing competition” under the block government; At the same time, the policy of social work stations has continuously adapted and adjusted itself in the process of diffusion, and local governments have diffused through compulsory mechanisms, learning mechanisms, competition mechanisms, socialization mechanisms and support mechanisms. In the context of grassroots social governance innovation, township (street) social work stations are not only the result of the change of the national compulsory system, but also an important innovation mechanism for local governments to deal with grassroots social governance issues.

Key words: township (street) social work station, innovation in grassroots social governance, policy innovation mechanism, policy diffusion mechanism