Abstract: The main drainage monitoring system of mine based on jet control has some phenomena such as leakage of jet pipeline and unstable pressure of jet water supply when its pipeline and valve equipment run for a long time. Aiming at the instability and unreliability of jet control program in mine main drainage monitoring system, an optimization method is proposed. The practical application shows that the program of the jet optimization control method can be stable and reliable to adapt to the unstable changing state of the jet device, and improve the efficiency and safety of the pump operation.