Abstract: In view of the serious deformation of secondary reused roadway along the goaf roadway, taking the S1212 working face of Ningtiaota Coal Mine as the research background, we found that when mining at 100 m, the serious deformation of secondary reused roadway occurred, effecting normal cycle operation.The on-site investigation and analysis of the cause of the roadway deformation were carried out, the joint maintenance technology of floor-up, roof picking and side expansion was proposed, and advanced intensive-oriented drilling roof-cutting pressure relief and floor pressure relief trough was put forward to control the deformation.The results show that after the joint maintenance technology is adopted for the secondary reused roadway, the deformation of the roadway is significantly reduced, and the normal cycle operation is gradually restored, which reduces the potential safety hazards of the working face and ensures the safe and efficient mining of the working face.