The utility model discloses a wound flusher for urinary surgery. The device comprises a bottom plate and an air cylinder, air cylinders are fixed to the two sides of the upper surface of the bottom plate. An armrest frame is fixed to the upper surface of the bottom plate, a lower lantern ring is connected to a telescopic rod of the air cylinder, a through round hole is formed in the center of thelower lantern ring, a motor and a drainage hole are formed in the two sides in the lower lantern ring, a first sleeve and a second sleeve are further fixed to the two sides of the top of the lower lantern ring, and an upper lantern ring is fixed to the lower lantern ring through the first sleeve and the second sleeve. The utility model discloses a wound flusher for urinary surgery. The air cylinder drives the lower lantern ring and the upper lantern ring to descend to the lowest position; patient striding, the air cylinder slowly drives the lower lantern ring and the upper lantern ring to ascend; the motor drives the gear to drive the water spraying ring to rotate, liquid in the liquid storage tank is conveyed to the inner ring through the pump body and then flows into the water spraying ring, a water inlet pipe of the water spraying pump is immersed by liquid medicine, and the liquid medicine is sprayed out of the inclined water spraying pipe, faces a patient in the middle, ascends, descends and rotates to conduct wound washing in an all-around dead-corner-free mode.