Abstract: In the energy-saving society the sustainable development of the economic society is promoted by forming the energy-saving growth pattern and consumption mode and effectively utilizing and recycling resources. Industry ecology requires that the sustainable development goal of compatibility of economy with environment and harmonious coexistence of human with nature by fully recycling resources and efficiently utilizing energy. This paper discusses the idea of industry ecology, the essence of energy-saving society, the relationships of industry ecology with the building of the energy-saving society.