Based on roof convergence, deformation of two sides and bottom plate in 23101 materials lane, drilling peer device was used to peek roof lithology of roadway, roof fragmentation affected by adjacent working face dynamic pressure was analyzed and reasonable support form was determined. The results showed that residual support pressure in adjacent goaf was main cause of roadway deformation; roof destruction was mainly located in shallow part, and there was no apparent ionosphere in deep area. However, it was very important to control sides for strong moving press in adjacent areas.