The invention discloses a metal plate spinning device consisting of a frame, a work table, a work table screw rod, a cross beam, a rotating arm frame, a horizontal-motion guide rail, a horizontal-motion screw rod, a front-back-motion guide rail, a front-back-motion screw rod, a sliding seat guide rail and a sliding seat screw rod. A sliding seat is installed on the cross beam, the rotating arm frame is installed on the sliding seat guide rail of the sliding seat, the sliding seat screw rod drives the rotating arm frame to move up and down along the sliding seat guide rail, a rotating arm is movably installed at the lower end of the rotating arm frame, and is movably connected with a main shaft, and a processing tool head is installed on the main shaft. The metal plate spinning device is characterized by realizing the spinning processing on shaped pieces, and being high in processing precision, good in forming effect, small in volume and multiple in functions.