Design and manufacturing of commercial aero-engine is facing enormous challenges, the utilization of digital technology is crucial means to establish the independent research and development system of commercial aero-engine. Model based definition (MBD) is the key technology to develop digital engineering ecosystem for the digital design and manufacturing of complex products. Through the deepening application of MBD, it has substantial significance for the construction of digital research and development pattern of commercial aero-engine in our country. This article studies the state of art of MBD technology at home and abroad, and elaborates the planning framework and thought of digital collaboration platform based on MBD technology. By reference to the linear paradigm of technology innovation process, it proposes the methodology for the utilization of MBD technology, and summarizes the work practice and achievements of MBD technology application on commercial aero-engine projects in ACAE, and prospects the application paradigm of MBE (model based enterprise) in the future.