In view of methods of enterprise performance influence hypothesis and designing & measurement of being explained variables and explaining variables as well as regression model construction, a result shows based on analysis of descriptive statistics and relativity and model results of China's 2 274 A-share listed companies' data in 2011. It tells us ownership structure is considered as important factor to influence company governance structure to enterprise performance. Board of directors and supervisors should be in appropriate size; independent broad should strengthen and perfect its system for its negative ratio correlation with company performance.