Abstract:Designed of the satellite navigation / Inertial Navigation Integrated Navigation System, owing to the navigation accuracy, stability, equipment costs and completeness of the navigation information and other aspects of limitations for a single Navigation system. Because of the kinds of GPS navigation systems controlled by others and the development of Beidou navigation system is not perfect, so proposed hardware and software design for military airborne Beidou / GPS / SINS integrated navigation system. Built Beidou / GPS / SINS integrated navigation system hardware platform, based on the weighted average data fusion algorithm uncertainty improve the reliability and accuracy of navigation integrated navigation system. The simulation results show that the integrated navigation system stability, high reliability, accurate positioning.