The improvement plan of negative pressure water storage and irrigation pump was proposed for the problems such as clogging of jet valve, silt stiffening of bottom valve and poor sealing when filling the pump in the drainage pump room of the east shaft of Gequan Mine. In order to improve the backward of manually operated drainage system, with reliability and efficiency, the pump room was automated on the basis of negative pressure storage and irrigation pump, which provided a reference experience for the pump room to deal with similar problems and pump room automation transformation.