This article conducts a systematic comparative study on the aircraft leasing policies in Tianjin and Shanghai. It deeply analyzes the characteristics, advantages, and disadvantages of the two policies from the perspectives of tax incentives, foreign exchange financing, and fiscal subsidies, as well as their impact on aircraft leasing businesses and leasing enterprises. Based on the comparative analysis results, policy recommendations are proposed to promote the development of the aircraft leasing industry in Tianjin and Shanghai, respectively. The research results of this article not only provide an in-depth analysis of the policy differences in the field of aircraft leasing among different cities but also offer valuable references for the industry and government to formulate more effective policies.