An AGV device capable of achieving automatic stacking comprises a stacking mechanical arm mechanism, a rotating platform mechanism, an AGV dual-wheel drive chassis, an object platform arranged on the AGV dual-wheel drive chassis and a lifting platform mechanism. The rotating platform mechanism is arranged above the lifting platform mechanism. The stacking mechanical arm mechanism is arranged above the rotating platform mechanism. The rotating platform mechanism comprises a rotating center shaft, an auxiliary gear, a fixed bottom plate, a main gear and a rotating top plate. The stacking mechanical arm mechanism comprises a steering engine connecting piece, a rotating encoder, two copper studs, two parallel connecting rods, four rocking bars and two rotating shafts. The lifting platform mechanism comprises the rotating encoder, a lead screw, a connecting shaft, a lead screw connecting block, two pairs of lifting rods parallel left and right, four parallel linear guide rails, two rotating supports and two linear sliding blocks. The AGV device is reasonable in design, efficient and convenient to use.