At present, China is at a crucial stage of rapid industrial development. And the mechanical and electrical equipments of enormous quantity constitute the main power consumption equipments of manufacturing enterprises, consuming large amount of electrical energy. Currently, the market is flooded with a wide range of mechanical & electrical products, but the system efficiency of the products is relatively low. Some manufacturing enterprises of mechanical & electrical products are not aware of the economic benefits the mechanical & electrical products may bring. In many cases, the manufacturing enterprises encounter barriers when promoting energy-saving reformation of mechanical & electrical products. However, the experts believe that, as the low carbon, energy conservation and emission reduction policies are pushed forward on a nationwide scale, the energy-saving equipments will be widely used.