Abstract: In order to accommodate the rapid development of the electronic information system on satellites, to make satellites work out their schedules by themselves, and to enable satellite’s autonomous management and autonomous operation, it is necessary to construct a reasonable and effective autonomous healthy management system. Based on the satellite mission management requirements, a small satellite autonomous healthy management system is constructed in this paper to address the current issues of the small satellite autonomous healthy management. The satellite autonomous healthy management includes three levels: the satellite system, the subsystem and components. The autonomous healthy management execution module in the level of the satellite system is designed, including the autonomous healthy management rule base and the autonomous healthy management execution mission. The paper proposes a satellite autonomous healthy management system to improve the small satellite autonomous diagnosis, its independent operation ability, and finally to realize the requirements of long life, safe and reliable operation of satellites.