Composite regenerated roof is a common object in deep and close distance coal seam mining, and the stability control of broken structure roof is the key to affecting the efficient mining of the lower layer. In order to improve the safety and mining efficiency of the composite regenerated roof working face, experiments were carried out on the coal body water injection solidification, roof grouting reinforcement, and pipe joint anchor rod roof reinforcement at the No.16-17-31020 composite regenerated roof working face of Pingmei No. 12 Mine. The mining pressure law of the composite regenerated roof working face was explored, and the support effect of reinforcement measures was evaluated. The research results indicate that after the implementation of reinforcement measures, the integrity of the working face is significantly improved, reducing the risk of accidents such as roof caving and frame compression. The average pressure step increased from 22.15 m to 29.92 m, and the roof pressure decreased from 25-31 MPa to 19-26 MPa. The amount of roof subsidence has been reduced by 50.4%, ensuring normal and safe mining of the working face, while the mining rate has increased by 16.7%. The coal solidification and roof strengthening measures have achieved good benefits, which can provide reference significance for the same type of composite regenerated roof working face.