Abstract: It is an innovative method for thermal power plants to supply steam to the outside by using a combination of high pressure steam jet steam compressor and medium pressure Interceptor valve. The principle is to match the pressure of the main steam and the high-temperature reheated steam with high pressure steam jet steam compressor.This method can give full play to the evaporation margin of unit boiler and reduce the influence of industrial steam supply on thermal power generation unit output.For generation units with medium and high pressure and large flow steam supply requirements, using this technology to carry out steam supply reconstruction can meet the requirements of power generation, steam supply, less environmental pollution and better economic benefit simultaneously. It is a mature and reliable steam supply method.