The roof of the 5101 roadway in the Silaogou Mine was heavily drenched, the top plate sank sharply, the two groups of deformation was large, with bottom heave. A combination of field practice and numerical simulation was used to optimize the arrangement of drainage holes and support parameters for the roadway roof. On this basis, a corresponding control scheme was proposed, and the deformation of the surrounding rock was monitored in the field. The results showed that the top plate subsidence did not exceed 100 mm, and the maximum migration of the two sides reached about 80 mm, with a good supporting effect for the roadway under similar geological conditions.