Within the flourishing of the energy Internet, electric energy storage has become one of the important supportingtechnologies of energy Internet. While focusing on the innovation and development of energy storage physical technology, its business model is also the decisive factor to determine whether the energy storage industry can flourish. Firstly, the relevant policies supporting the development of energy storage are sorted out, and theirimpact on the energy storage industry is discussed. Secondly, thedevelopment status of business models of energy storage at home and abroad are summarized and analyzed, which are in the fields of supporting new energy, microgrid, ancillary services and so on. Finally, it puts forward a potential and feasible business operation model of energy storage based on the reality in China.