Electric plastic ball valve is made of electric actuator with plastic ball valve, the overall has light weight, strong corrosion resistance, is widely used in many fields, such as general pure water and raw drinking water piping system, drainage and sewage piping system, salt water and seawater piping system, acid base and chemical solution system and other industries. The electric actuator adopts integrated design, the input 220V power supply can be adjusted directly, and the built-in servo module can be used to control the operation of the input control signal (4 ~ 20mADC or 1 ~ 5VDC) and single-phase power supply.