With the development of the Satellite-Networks, information globalization becomes the tendency of human development. But the Satellite-Networks have some characteristics, such as the diversity of coupling form, the asymmetry of terminal distributing and Satellite-Networks’ opening and so on. Leading the Satellite-Networks faced with faults emerged one after another, so orientating the fault node in time is very important to guarantee the integrality and usability of Satellite-Networks system. According to the layer-driven principles, a new type of trouble hunting system is presented. In it, event detection sequences are viewed as positive selection event database, and a trouble hunting matrix will be built up and analyzed. The experiment shows good trouble location ability.