With the increasingly mining depth, concentrated stress of intersection, cutthrough, overlying and goaf may cause broken roof, with difficult support and safe threat in roadway mining. Roof broke in the intersection of the eastern fourth coal column air return roadway and cutthrough of cut eye in Yanmazhuang Mine, roof subsidence and roof caving may happen in case of large area of empty roof and no timely maintenance. Special roof control of metal frame, artificial roof undue broken roof was introduced, with reference for similar coal seam mining.