The Report of the 19th National Congress of the Communist Party of China Extensively puts forward the idea “carry out national fitness activities to speed up the construction of sports power” and points out the direction for the future development of China's sports undertakings, and also raises new issues for how government departments that provide public sports service functions to support the growing public sports needs of the people. Based on the theory of the government's purchase of public sports service system, this article analyzes the problems existing in the development of the purchase of public sports services by China' government, and concludes that there is still an imperfect legal system in our government to purchase public sports services, lack of information transparency, the blurring of the power and duty of government purchasing legal relationship subjects, and the degree of undertakers' market scale is low.For this reason, this paper believes that the system should be improved in the promotion of the law rule which in government purchasing public sports services, the detailed supervision system, and supported accurately for the development of the social sports organizations.