"Prevention, blockage, dredging, drainage, interception, supervision, and exploration" are measures to prevent and control water damage in coal mines. 182602 working face of Wutongzhuang Mine was complicated in hydrogeological conditions, with the characteristics of large mining depth, high floor confined water pressure, structural development and broken floor. Based on the effect of the grouting pressure improvement in grouting effect of the 182602 working face, the law was summed up, the corresponding governance measures were made to achieve the best grouting effect.