Abstract: According to the stabilization of rock masses around southern goaf in Jinchangyu Gold Mine, the method combining mechanics of rock masses with engineering problems is used to study the distribution characteristics of petrofabric of rock masses, structural surface, structural system, hydrological geology and structure, and the stabilization of engineering structural system and other correlation factors. This research finding has provided basis for treatment of southern goaf in Jinchangyu Gold Mine and guarantee for safety in production.