The invention discloses a hot plate machine, which can effectively solve the problems that the hot plate machine in the prior art needs manual pressing, wastes time and labor and is not suitable for mass production in a production line. The hot plate machine comprises a frame, a plate pressing device and heating devices, wherein the plate pressing device comprises an upper pressure plate and a lower pressure plate; the lower pressure plate is fixed on the frame; the upper pressure plate is movably arranged on the frame, is provided with a heating device, and comprises a pressure plate bracket, a lifting device and at least one alloy plate; and each alloy plate is provided with a heating device respectively and is arranged on the pressure plate bracket through the lifting device. The hot plate machine has the advantages that: the hot plate machine is convenient to amount, has wide applicability, and replaces manual heating to improve temperature control; the distance is conveniently adjusted according to requirements of different parts; the hot plate machine is simple and convenient to operate, high in speed, and suitable for production line operation; wide-range height adjustment can be carried out by adjusting the upper pressure plate, and fine adjustment also can be carried out by the lifting device on the upper pressure plate; and the control accuracy is improved and the manufacturing inaccuracy is reduced.