Because of the current lack of empirical research on banking governance issues, we use the data of 14 listed joint-stock commercial banks, and spell out the relationship between governance structure and the bank's operating performance by the establishment of a single equation of simultaneous equations model, empirically analyze the relationship between the bank's performance and board independence. The results show that the independence of the board of directors influences the bank's performance, but the effect is not significant. In comparison governance structure, the scale, the capital structure and the volume of net have greater impact on bank performance. Finally, we make a policy proposal to introduce strategic investors.