In March 2006，《The Outline of the 11th Five-Year Plan for National Economic and social Development (Profile)》stated that energy consumption per unit of GDP will be reduced by about 20% in “The 11th Five-year Plan ” period，which indicates the economic growth is transferring from conventional industrialization to new pattern. Due to the economic structure emerging with high energy intensity in “The 10th Five-year Plan”period, the proportion of energy consumption of industrial sector had gradually increased from 68.63% to about 71% of the national energy consumption. Apparently, iron and steel industry had experienced its rapid growth with the steel output increasing from 128.5 million tons to 352.39 million tons and the annual growth rate of 22.36% . Its energy consumption accounted for 21 % of the whole industrial energy consumption. Therefore, how to realize the sustainable development of increasing the output while reducing the energy consumption in those high-energy intensity enterprises would provide the good reference to the industrial sector, even to the whole country. Based on the investigation and analysis on WISCO, some important inspiration and experiences were summarized.