The multifunctional water pump control valve consists of a main valve, a regulating valve and a pipe connection system. The valve body adopts a direct current valve body. The main valve control chamber is a diaphragm or piston double control chamber structure. The control chamber has one more than the general hydraulic control valve, which increases the control function of the main valve, and realizes multifunctional control of the water pump outlet such as slow opening, full opening, slow closing, and cutoff. It realizes multifunctional control of the water pump outlet with one valve and one adjustment. This product is used on the water pump outlet pipeline of the high-rise building water supply system and other water supply systems to prevent and weaken the water hammer of the pipeline when the water pump is opened and closed, prevent water backflow to protect the water pump, and maintain pipeline safety.