The development of Internet generated the wave of E-Commerce, which can lead an expansion of IT industry. This paper focuses on the relationship between of ownership motivation and corporate performance in IT companies because the showing of low occupational stability of managers in IT industry. With an empirical research through all 99 IT companies from Shanghai and Shenzhen stock market as the sample data, this paper founded that the average managerial ownership is quite small and has no effect on corporate performance, but there is an U-curved relationship between the population ratio of managerial stockholder and corporate performance.