Abstract: In order to obtain the overlying strata and the deformation law of surface movement in different inclined coal seams, based on the geological mining conditions of 8101 working face in Ordos coal field, we used FLAC^3D numerical simulation software to analyze. The results show that: mining in different inclined coal seams, the maximum collapse height of the central roof of the working face and the maximum bulging height of the central floor of the working face are obvious polynomial relationship with the coal seam inclination; the maximum subsidence value and the horizontal moving value increases with the increase of the inclination angle and shows the cubic polynomial relation; mining affects the propagation angle, and the uphill boundary angle and the coal seam inclination is obviously decreasing relationship; the downhill boundary angle increases with the coal seam inclination, first increases and then decreases; when the dip angle is 33°, the downhill boundary angle is the smallest.