Public sports service system，led by the government，co-built by the whole community and participated by all the citizens，is one part of social public service system，aiming at satisfying the needs of different groups of people，including sports facilities，organizations，activities and service. To foster sports social organizations into a dominating part in public sports service system is extremely important for constructing an urban-rural integrated，universally beneficial and equal public sports service system. This paper analyzes the successful practice of Changzhou in promoting the coverage，development，operation and team building of sports social organizations，and further puts forward some new thinkings and measures to play the leading role of sports social organizations and construct the public sports service system.