Abstract: Technological progress is the sustainable driving force to social and economic development, and also an important support for governance modernization. The technology and institutions drive the modernization of social governance, and the advantages of the social governance institution of co-construction, co-governance and sharing are constantly revealed. The institutional absorbing capacity, integrating and executive capacity are integrated to form the more credible institutional advantages. In the era of digitization, networking and intellectualism, new technologies are embedded in social governance with different features, accelerating the reconstruction of social governance structure both in urban space and city. Based on the "content-oriented and results-oriented governance evaluation framework", a new analysis framework has been built with "system-technology-mechanism-efficiency", to describe the "technical" characteristics of municipal social governance, from subject, mode, object and effectiveness. In combination with national policy and local practice, advice has been offered to the ways to promote the modernization of municipal social governance. It should adhere to the principle of using institutions to condense the governance community, technology to expand new ways of governance, mechanisms to stabilize the institutions execution, and finally to realize the transformation of institutional advantages to the efficiency of municipal social governance under the technology empowerment.