The invention discloses an electric flood prevention drainage vehicle. The electric flood prevention drainage vehicle comprises a frame; a revolving platform is arranged on the frame; a support base is arranged on the upper surface of the revolving platform; a water pump is arranged on the upper surface of the support base; a water inlet pipe is mounted in a water inlet of the water pump; a water outlet pipe is mounted in a water outlet of the water pump; the water inlet pipe and the water outlet pipe are both connected with hoses through quick joints; and a hydraulic cylinder is arranged between the lower surface of the support base and the frame, and is fixed on the frame. The electric flood prevention drainage vehicle is reasonable in design, simple in operation and convenient for transportation, can perform the drainage operation in all directions, is high in stability in the drainage process, and can span over higher obstacles for drainage.