Abstract: Fault slip instability is one of the main factors inducing coal bursts. The dynamic evolution characteristics of the stress field on the fault surface induced by mining disturbance is important to the mechanism of fault slip instability. In order to explore the stress field characteristics of the fault surface during coal mining, a mechanical model for the fault and its surrounding rock stress considering the influence of mining is established. The dynamic evolution laws of the normal stress and shear stress on the fault surface during mining are analyzed. The stress field and structural potential energy on the fault surface with different dip angles are studied. The research results indicate that: the stress on the fault surface gradually expands towards the upper of faults as the mining face advances; the influence zone on the fault starts appears in the lower part of the fault closer to the coal seam, and then gradually expands towards the fault top during the coal seam mining. Therefore, an upward trend of stress influence zone on the fault surface becomes more significant. In addition, the effect of mining disturbance on fault stress diminishes with the dip angle increase, and the area of influence zone of stress on the fault surface gradually increases from bottom to top of the fault surface.