Based on the Countercyclical Capital Buffer, this paper uses China's data to do some empirical studies. The empirical analysis shows that it is an applicable and feasible mechanism for China. Along with credit data analysis, the empirical results also reveal that there exists excessive credit expansion, while maturity and currency mismatch risksas well as the credit risk in foreign currency have become the most prominent problems. It requires regulators to strengthen the control over both home currency...