Based on the theoretical analysis and empirical research frameworks in existence,taking 331 listed companies in Shenzhen Stock Exchange as the object of survey,this paper tries to check up the correlation between managerial ownership and corporation performance by means of non-liner regression model.This empirical research comes to a conclusion that there is remarkable cubic curve relationship between managerial ownership and corporation performance,i.e.within the scope of the managerial ownership from 0 to 0.1376%,the performance descends as the ownership increases;within the scope from 0.1376% to 0.7462%,the performance ascends as managerial ownership increases;after exceeding 0.7462%,the performance descends again as managerial ownership increases.