Bending machine is a kind of machine that can bend thin plates. Its structure mainly includes bracket, worktable and clamping plate. The worktable is placed on the bracket. The worktable is composed of base and pressing plate. The base is connected with clamping plate through hinges. The base is composed of base shell, coil and cover plate. The coil is placed in the depression of the base shell, and the top of the depression is covered with cover plate. When in use, the wire electrifies the coil, and when electrified, it generates gravitation on the pressure plate, thus realizing clamping the thin plate between the pressure plate and the base. Because of the use of electromagnetic force clamping, the pressure plate can be made into a variety of workpiece requirements, and can be processed on the side wall workpiece, the operation is also very simple.