The vibration phenomenon induced by the power instability and collapse of the overlying rock layer in the mining area is called mining earthquake, and compared with the phenomenon of large-area roof to pressure, the occurrence of mining earthquake is very occasional. Mine quake is induced by the rock layer overlying the mining airspace, must have a large enough area of the mining airspace, i.e., a large area of overhanging roof as a basic condition. In recent years, due to the development of mining technology and coal mining equipment, such as long-wall high mining, small coal pillar or no coal pillar (along the empty roadway) mining and other advanced technologies, in the absence of filling of the mining void area, a large overhanging roof for the overlying rock strata subsidence movement to provide space conditions, so that the overlying rock strata of the mining void area subsidence movement is very dynamic characteristics, and compared with the general movement laws that have been mastered, it exhibits extremely unstable impact.