Abstract: As there are instruments mounted on the satellite outer boards that are connected to the satellite structure by some cables, there should be a proper brace that could uphold and overturn them for the satellite cabin board assembly, and many ship-fitters are required to work in close cooperation to ensure the assembly precision. This paper analyzes the process of the satellite board assembly and proposes a way to complete the assembly process with robot automatically or semi-automatically, to enhance the assembly precision and the work efficiency.