At the initial stage of leasing business, 100% of the financing came from overseas, and the state-owned commercial banks only acted as guarantors. With the acceleration of the internationalization of domestic banks and the expansion of business fields, people have seen the long-term (usually more than 10 years) and low-risk (double guarantee, on the one hand, the state-owned commercial banks provide the guarantee, and at the same time, the aircraft purchased by airlines have to be mortgaged) stable income brought by aircraft leasing business to lending banks, and actively explored ways for state-owned banks to participate in aircraft leasing business. China Industrial and Commercial Bank is one of the state-owned commercial banks that participated in the aircraft leasing business earlier. In the early 1990s, he participated in the aircraft leasing business as a guarantor, and provided many guarantees for large airlines such as Air China, China Southern Airlines and China Eastern Airlines. 1998, at the invitation of Chase Bank, ICBC participated as the deputy head of a syndicate formed to finance the leasing of a Boeing aircraft for Air China, and officially became the lender of aircraft leasing. At present, China Industrial and Commercial Bank has occupied an important share in the aircraft leasing credit market and accumulated rich financing experience.