First, the Ministry of Finance issues long-term treasury bonds, which are purchased by state-owned commercial banks and resold to the central bank; The second is to increase refinancing to financial institutions other than the four state-owned commercial banks. The third is to provide refinancing according to the actual needs of asset management companies, and allow asset management companies to issue bonds to offset part of the debts of key large and medium-sized state-owned enterprises, especially military enterprises, which will be bought by the central bank to increase the money supply and resolve some financial risks, so as to effectively use the surplus funds deposited in the central bank and commercial banks. The fourth is to rediscount to commercial banks.