Abstract：The marketization of interest rate is the inevitable result of the development of a country's financial industry. With the advance of interest rate liberalization in China, China's commercial banks are facing great challenges and serious challenges brought by interest rate liberalization. At present, the main business of China's commercial banks is mainly deposit business and loan business. The deposit and loan business is very sensitive to the interest rate change. Interest rate change will directly affect the assets and liabilities of our commercial banks, thus affecting the income and profits of commercial banks. So the effect of interest rate marketization on China's commercial banks is very great.