In order to improve the coal recovery rate of No. 2 coal seam, the roadway retention technology was adopted in the 1101 working face, and the calculation formula of the support resistance of the filling body beside the roadway was derived through theoretical deduction. The width of the filling body beside the high-water filling lane was 1.2 m. Based on the specific situation of the 1101 working face, the parameters of the filling body support and temporary support during the road retention were designed. Finally, the technology of retaining the road along the road was observed by observing the surface displacement of application effects. The results showed that during the transportation along the lane of the 1101 working face, the maximum values of the top plate sinking amount and the bottom plate bulging amount were 113 mm and 168 mm, respectively, and the maximum value of the two approaching amounts was 275 mm, which kept the stability of the surrounding rock.