Aiming at the problems of weak surrounding rock breakage, floor heave, roof subsidence and inner compaction of two sides in the process of roadway mining with -950 m belt conveyor in Lvjiatuo Mine, in order to achieve the stability of roadway support, ensure smooth operation and safe production of various production links such as mine pedestrian, ventilation and transportation, etc. The damage mechanism of soft rock and anchor reinforcement mechanism of the injection was studied, and the anchor support in mount belt reinforcement engineering practice was carried out, after the late observations showed that the surface of the convergence in the early stage of the anchor net spray support, on the basis of the choice of appropriate grouting reinforcement, could effectively improve the stress distribution of surrounding rock of roadway, greatly reduce the displacement of roadway, play a great role in maintaining the overall stability of roadway.