Objective　To analyze the medical service market structure and the competitive status and in Suining county to make recommendations in accordance with the existing problems. Methods　Data of annual business income， number of bed and health personnel in 14 hospitals of the third class and above were collected to do market concentration analysis and Herfindahl-Hirschman index（HHI）analy-sis. Results　Market concentration degrees of three indicators were above 60.0% and the HHI score were all above 1700， which demonstrated that hospitals in Suining county was highly concentrated and the market structure of oligopoly was high. Conclusions　Medical service market competition environment in Suining county is bad， therefore， it is necessary to introduce competition mechanism， optimize resource allocation， carry out open information thus to improve the service level of the township hospitals.