Oven and cistern of electric-heating steam-generator, brass stainless-steel leaf for supplying water make pump pressure of high pressue strong, noise low, through oven and cistern automatically to control water level and supply water. Steam pressure is controlled during 0.25-0.35Mpa, and installs insurance safety-valve, make installation and use convenient,power,water is put through. After 15 minutes, will supply 0.35Mpa steam pressure. Meanwhile, steam temperature is symmetrical, having high-working efficiency, having acquired product patent certificate.