The hydrogeological conditions of No. 15 coal seam in Yuecheng Mine was studied, and the mining conditions under pressure of the coal seam was evaluated. The first mining face 151302 of the No. 15 coal seam in Yuecheng Mine was taken as an example, the technology of water prevention and control in pressurized mining of the coal seam was studied, different water control schemes were determined, which provided reliable basis for the next step of water control work in the mine.