The mobile communication is an important branch of satellite communication and low cost is the development trend.To promote the popularization and application of the SOTM,this paper proposes the work mode of low cost micro inertial sensors.The fusion algorithm and the complementary filter are compared with the new integrated navigation attitude estimation algorithm.The sideslip angle and acceleration are the main factors affecting the accuracy of the estimation.The low observability of the yaw is the main factor to limit the accuracy of the integrated navigation algorithm.After three kinds of algorithm is improved,the attitude estimation errors are all less than 0.5°,which can satisfy the demand of mobile satellite communication, but the navigation algorithm has a good application prospect without considering the influence of interference on pose estimation.