Abstract: This paper analyzes the character of large commercial aircraft industrial chain. It proposes that as the role of Chinese large commercial aircraft companies in the industry chain changes from level two, level three contractors to the core controllers, international competition faced by China's large commercial aircrafts is not only the competition between main manufacturers, but also the competition between industrial chains based on main manufacturers as the core of the global industry. The international competitiveness of China's large commercial aircraft industry is depending on key components integration, technology integration and the integration of core competence of triple integration capability. The large commercial aircraft industry of China also needs to improve the dynamic competition through the way of core competence promotion, organization form changes and independent innovation of key system components.