With the low permeability,good creep and damage recovery of rock salt, salt cavern is a good medium of underground energy storage, and thus is used for gas, crude oil and liquid hydrocarbon storage. Salt cavern can also be used for compressed air energy storage and hydrogen storage, and storing and transforming surplus energy form renewable energy sources. At the same time, salt caverns are also widely used in the industrial waste, hazardous waste disposal, carbon dioxide sequestration and so on. This paper reviews the application of underground salt cavern in the field of energy underground storage and the basic principle, the technical development trend of salt caverns, and expounds the development status of China's energy storage in salt caverns.