The implementation of ground deceleration function in aircraft involves several systems, and the comprehensive system architecture has high complexity. The number of interfaces between multiple systems is huge and the interface forms are diverse, and the dynamic cooperative work logic between multiple systems is complex.To handle this complexity, a model-based system architecture design method was proposed; SysML modeling language and object-oriented concept were applied into the architecture design and behavior analysis of aircraft ground deceleration system, which could realize the unified definition and decomposition of system architecture elements, the unified interface definition and analysis of multi-systems integrated architecture; At the same time, it could realize the synthetic design of static architecture and dynamic behavior. The architecture model and behavior model of aircraft level and system level were established, and the analysis of ground deceleration function and the multi-system integration design was effectively realized. The practice shows that the architecture design method for design of aircraft ground deceleration system based on SysML can effectively deal with the complexity of multi-system integration design, and improve efficiency and quality of integrated design.