The telecommunication satellite simulation system is used to simulate the working status of telecommunication satellite. It plays a very important role in the validation of the satellite program, TC&R compatibility test, flight control drills, satellite operation training, failure investigation and etc. With the development and application of simulation technology, each subsystem of satellite has developed a corresponding and professional simulation system. However, it is an urgent problem to be solved, how to effectively integrate the professional simulation systems, to produce a whole simulation system. By excavating the distributed simulation system, the architecture of the HLA-DDS hybrid distributed simulation system was designed, which can effectively integrate the professional simulation system and produce a whole and precise simulation system.