Hydroelectric power generation device for underwater unmanned vehicle

The hydroelectric generation device structurally comprises a machine body, a main body and a propeller, the main body is arranged in the middle of the top of the machine body, the propeller is connected to the rear end face of the machine body, and the main body comprises a frame body, a floating device, magnetic induction lines, an electricity storage magnet and an instrument cabin. The floating device comprises a foam block, an outer surface frame, a guide device, a cutting groove and a cutting device, and the guide device comprises a foam body, a concave groove, a guide block and a flow guide strip. The cutting device can continuously cut the magnetic induction lines to generate electricity, cruising ability is provided for the aircraft, even if no wave exists under the water surface, the magnetic induction lines can be cut to generate electricity through power generated when the aircraft moves in water conservancy, and cruising ability is continuously provided for the aircraft. 本发明公开了一种用于水下无人航行器的水力发电装置，其结