Abstract: The west section of -810 m belt conveyor roadway in Pansan Coal Mine is under the influence of upper and below goaf, and the engineering condition is so complex that the roadway support is difficult. Therefore, theoretical model was established to analyze the stress state, and stress expression of roadway surrounding rock and its damage and fracture radius was reduced. The effect of rock mass unloading pressure disturbance and strength deterioration on the radius of plastic damage zone and loosening cracked zone was analyzed with considering the influence of upper and lower goaf.