Based on the clinical trial data of cooperation between/among domestic institutions that are registered at the US clinical trial registration web site, the paper analyzes the major characteristics and institutional cooperation of clinical trials performed in China by making use of SPSS statistical software and Gephi visualization social network analysis software, identifies institutions carrying out frequent cooperation and their cooperation patterns,as well as sets forward that development of domestic clinical researches shall be accelerated and management and application of clinical trial data shall be strengthened.