At present, China's banking system includes the central bank, policy banks and commercial banks. The central bank is the People's Bank of China, the policy banks are the Agricultural Development Banks of The Export-Import Bank of China and China, and other workers and peasants such as China Construction, China Merchants, Xingye and Pudong Development are all commercial banks.

Commercial banks, abbreviated as CB in English, have a popular network homonym "save it", which means storage bank. The concept of commercial banks is different from that of central banks and investment banks. It is a financial institution with profit as its function, raising funds with various financial liabilities and operating with various financial assets. General commercial banks have no right to issue currency. Traditional commercial banks mainly focus on deposit and loan (borrowing) business, that is, borrowing deposits at lower interest rates and lending loans at higher interest rates. The deposit-loan spread is the main profit of commercial banks. The main business scope of commercial banks includes absorbing deposits from the public, enterprises and institutions, issuing loans, discounting bills and intermediary business. It is a savings institution, not an investment institution.