In order to improve the low efficiency, high labor intensity and serious waste of resources of traditional raft support in the retaining roadway along the goaf, Qiuji Mine adopted the high water material filling and support in the roadway to retain the roadway. The geometric parameters, the position of the filling body and the stability of the filling body were designed respectively. The displacement of the roadway surface and the overall deformation law of the filling body were observed and analyzed. The application results showed that the maximum shrinkage of the roadway section was 10.82%; the filling body was behind the working surface from 20 m to 60 m, the deformation was most intensified. From the data point of view, the deformation of the surrounding rock surface of the roadway was still small, which could meet the mine production demand.