Abstract: Aiming at the specific geological conditions of the belt transportation crossing seam roadway in -720 m level east wing of a mine. According to the on-site investigation, the dominant factor of roadway deformation in this condition is analyzed, and stress field of surrounding rock can be optimized by supporting measures, the "two strengthening one lag" strengthen control countermeasure of the surrounding rock structure is put forward and reasonable support parameter is designed,the deformation of roadway surrounding rock is effectively controlled.