Abstract: In order to meet the requirements of the future systematized operation for avionics system, such as variable platform functions, rapid integration and integration of the system, and rapid insertion of new technology and new capabilities, a network-centric distributed integrated modular avionics system architecture is proposed on the basis of comprehensive analysis of the development trend of the future avionics system architecture. In this paper, the concept, model and characteristics of distributed integrated modular avionics system architecture are studied, and the core technologies to be solved for distributed architecture engineering applications such as hierarchical synthesis and management, avionics light weight cloud computing, computing and communication model are analyzed, and the benefits of distributed integrated modular avionics system architecture for operational use are put forward by comparing with traditional architectures. This paper presents a feasible solution for the future design and development of avionics systems..