There is a tendency of the market competition in commercial aircraft manufacturing industry of China. The aircraft manufacturers focus on the gradual extension of product and services, in order to sustain the development. Throughout the whole product life cycle of aircraft, main research and development of products should be a comprehensive, systematic research and development including aircraft products, service products and the entire operation support and maintenance system, that is, commercial aircraft product service system.Based on the concept of product service system, this paper creatively puts forward some ideas which are different from the traditional and new commercial aircraft research and development mode. New commercial aircraft development pattern is introduced in this paper based on system engineering method, its development mainly includes four key processes:capturing stakeholders needs, building product service system function structure, building the product and the service function relation matrix and defining technology solutions. Functional hierarchy structure depends on the performance of product service function oriented, which is as an important point in the whole process of research and development.