Abstract：Based on discontinuous deformation analysis(DDA), we take an area from the Jiali fault region as an example to explore the changes of geostress distribution during the fault creep process. The results show that: the fault creep may lead to a significant increase of stress in rock mass and the stress has a similar trend with the increase of depth; the stress in fault fracture zones is lower than that in the surrounding rocks on both sides in general; the fault creep can cause the development of a large number of cracks in rock mass, resulting in the discontinuity of stress distribution; the areas of stress concentration in fault fracture zones and the surrounding rocks on both sides show the same distribution at different depths.
