Abstract Development strategies of commercial aero engine in European Countries and the United States engine companies were mainly studied in three aspects which were industry, product and technology. In the aspect of industry, the strategies of coordinated development for military, civil and gas turbine engines were expounded emphatically. In the aspect of product, accelerating the development of derivative from core engine, making full efforts on being occupation of international market as well as extensive international cooperation were summarized and analyzed. Also from the point of technology, carrying out advanced research and laying a solid technical foundation were proposed. Moreover, the integration of technologies for military and civilian purposes and the conversion between them as well as the strategy of multiple inheritance and less Innovation were also presented. Development strategies of European Countries and the United States engines were studied and discussed to provide reliable references for the development of Chinese domestic commercial aero engines.