In order to analyze the effects of flywheel disturbance on dynamic characteristics of satellite frame structure,the dynamics model of satellite thin plate was established by travelling wave method in this paper,and then the travelling wave dynamics model of satellite frame structure was established by combining travelling wave method and sub-structure technique.The simulation on dynamics characteristic of the satellite frame structure was carried out,and simulation results were compared with FEM results.It is showed that travelling wave method is accurate and effective in calculating the dynamic response of satellite frame structure,and it is more accurate than FEM results at mid to high frequencies.