Hydraulic electric floating ball valve is composed of diaphragm main valve, angle needle valve, ball valve, conduit and solenoid valve, float ball controller, etc. This valve is based on remote control floating ball valve installed with an electric control device of normally open (closed) solenoid valve, so that the electric floating ball valve has double safety function. The electric floating ball valve can set the opening and closing water level (adjustable within 1000mm height) to solve the frequent opening and closing of the main valve. Disadvantage, can be widely used in industrial, mining, construction, fire protection and other fields of various types of water storage devices (such as pools, towers, water tanks, etc.) water level automatic control.