The invention discloses a hot-rolled dual-layer bimetal composite plate separation and turnover machine. The hot-rolled dual-layer bimetal composite plate separation and turnover machine comprises a gantry rack, a lifting platform, plate separation suction cups, a sliding seat and a mechanical arm type plate clamping device. Conveying roller ways are arranged below the gantry rack. The lifting platform is mounted on the gantry rack in a sliding manner and driven by a lifting power device. The plate separation suction cups are arranged on the lifting platform. The sliding seat is mounted on the lifting platform in a sliding manner and driven by a transverse movement power device. The mechanical arm type plate clamping device is connected with a rotary shaft, the rotary shaft is rotationally mounted on the sliding seat, and a torsion spring is arranged between the rotary shaft and the sliding seat. The hot-rolled dual-layer bimetal composite plate separation and turnover machine can carry out plate separation and turnover operation on hot-rolled dual-layer bimetal composite plates, the need of continuous production is met, production efficiency is improved, and the hot-rolled dual-layer bimetal composite plate separation and turnover machine can be used for the hot-rolled dual-layer bimetal composite plates or coils.