No. 12 coal seam of Tongjialiang Mine was taken as the research object, aiming at the problem of easy deformation in deep mine roadways, firstly, the rheological property of the roadway surrounding rock and the factors affecting the deformation of the surrounding rock were analyzed, and the surrounding rock specimens were drilled in the roadway, combined with the calculation of the mechanical performance experiment, the surrounding rock mass density, tensile strength, compressive strength, shear strength and other parameters were obtained. FLAC3D software was used to simulate and analyze the stress, relative displacement and the change of the broken meeting site, with reference value.