Electric furnace heating stove is made of heat-resistant stainless steel with electronic ignition device, using silicon carbide as heating element, ammonia resolving or gaseous fission as preservation. The preservation netting is heat-resistant stainless steel, 300mm or 400mm wide and electronic speed-controlled. The machine is thyristor triggering temperature controlled, with a heating power of 80KW and maximum working temperature 1200℃, which makes bright annealing and surface-blackening treatment possible.