The invention discloses a dual-shaft bidirectional hard sealing welding butterfly valve. The dual-shaft bidirectional hard sealing welding butterfly valve comprises a turbine drive device, a transmission device, a support device, an operation device and a fixed shell device; the turbine drive device comprises a hand wheel and a turbine head; the hand wheel is arranged on the turbine head; the handwheel is in transmission connection with the turbine head; the turbine head is arranged on the transmission device; and the transmission device is in transmission connection with the turbine head. The turbine drive device drives the transmission device in the support device to drive the operation device to drive for work in the fixed shell device, the situation that when a valve board face generates too high pressure, a transmission device connected with the valve board face axially bends due to too high torsion is avoided through dual-shaft connection in the transmission device the symmetricdesign of bearings, in addition, through the structure of a valve base and a valve base press block, a movable valve base moves to a fixed valve base under the action force of fluid media, the bidirectional sealing effect is achieved, the sealing effect is good, and the purpose of dual-face zero leakage is achieved.