Abstract: Through theoretical calculation and numerical simulation, the movement, deformation and development law of overlying strata after coal seam mining in Hanjiawan Coal Mine are analyzed.By constructing the stress calculation model of the stope, the stress distribution of the surrounding rock of the stope is calculated using the principle of elastic mechanics.Then, the theoretical calculation results are verified by numerical simulation and field measurement data.The results show that the deformation and failure of overlying strata above the goaf do not occur instantaneously, but gradually develop from bottom to top with the advancement of the working face.During the mining process, the vertical stress and vertical displacement in the center of the stope are kept within a safe range.It is concluded that during the mining process of 2^-2 coal seam, the stress in the coal pillar at the open-off cut gradually increases and finally stabilizes, the peak pressure is maintained in the range of 15～17 MPa, the influential range of the support pressure of the working face is 30 m, and the damage does not penetrate the interlayer rock layer.At the same time, due to the mining of 2^-2 coal seam, 3^-1 coal seam is in the stress reduction area, and its working face pressure is about 2.5 MPa.These phenomena are basically consistent with the actual situation in the field, which verifies the rationality of the data.