Abstract: In order to solve the problems that roadway driving along goaf is greatly influenced by the lateral stress of goaf, the surrounding rock of roadway is difficult to control and deform, and the roadway maintenance and safety management are difficult, taking the return air roadway of N1105 fully mechanized mining face of Yuwu Coal Company as the engineering background, numerical simulation analysis is carried out by FLAC^3D software, and it is determined that the width of coal pillar on the side of goaf is 8 m. Combined with the geological conditions of roadway and the actual situation of field mining, the asymmetric differential support technology for roadway driving along goaf is proposed. Based on the simulation analysis of the stress change and plastic zone distribution characteristics of roadway surrounding rock under the same geological conditions, it is concluded that the stress concentration range of roadway surrounding rock at the side of coal pillar is smaller under the asymmetric differential support mode, and the stress concentration range is about 2 ~ 3 m away from the roadway wall, and the plastic zone range of coal pillar wall is about 2.0 m smaller than that under the symmetric support mode. The application practice results show that the surrounding rock deformation of the return air roadway in N1105 Working face tends to be stable after 90 days of excavation, and the roof subsidence, solid coal body and coal pillar side drift are about 275, 230、 280 mm respectively, and the surrounding rock deformation is within the allowable and controllable range.