Hydraulic control ball valve capable of conducting pressure releasing in advance

The invention discloses a hydraulic control ball valve capable of conducting pressure releasing in advance. A valve pipe assembly is included and comprises a valve body and further comprises a first valve pipe and a second valve pipe communicating with the two ends of the valve body. A ball body and a pressure releasing device are contained in the valve body. The pressure releasing device comprises a pressure releasing mechanism and a closing mechanism arranged on the surface of the ball body, wherein the pressure releasing mechanism is arranged in the ball body and can release pressure in advance. A through hole is formed in the ball body. The ends, close to the valve body, of the first valve pipe and the second valve pipe are provided with valve bases for limiting the ball body. The newpressure releasing device is introduced in the ball valve, so that the torque is reduced, difficulty for converting the closing state of the ball valve into the conduction state is greatly lowered, the work difficulty of work