As the financial holding companies grow in china,regulating capital in financial holding companies according to the new Basel Accord requirements and the world's financial regulatory practice in recent years have become the core financial regulation.In this paper,we use panel data and develop the multiple regression modes of capital requirement and risk change to test the effect of capital requirement on risk change.Research indicated that the financial holding company of the mixed operation mode has greater impact on capital requirement,and the financial industry risk is not significant.Research also found that small-scale financial firms are easier to control financial risks than large compa- nies.The results strongly support the proposition of developing our modest size of the mixed operation of financial hold- ing companies and small and medium-sized financial institutions.This study adds the extent literature on financial su- pervision,and at the same time,its important empirical evidence is helpful for guiding the future development of Chi- nese financial industry.