Abstract: Aiming at the example of strong earthquake inducing burst in thick coal mine roadway, the dynamic and static loading model of floor beam is established, and numerical simulation and micro-seismic monitoring are carried out. The results show that dynamic load leading floor impact is divided into tensile stress damage and flexural deformation and failure, and the magnitude of inertial force caused by vibration acceleration determines whether the floor beam is damaged or not and the destroyed types. The particle of the same depth has the same distance from the source level, and the bigger the distance, the easier it is to impact and destroy; the particle of the same distance from the horizontal level, the smaller the depth, the greater the inertial force. The comparison of numerical simulation results confirms the scientific nature of the theoretical analysis, and guides the development of pressure relief measures to achieve good control effect.