Solar power generation is an important application of solar energy, and solar thermal power generation is one of the most promising ways in the field of renewable energy power generations. Heat transfer and heat storage technology at high temperature is crucial to develop solar thermal power generation. In commercial solar thermal power plants, molten salts were proven as the most promising medium of heat transfer and heat storage with good properties. This paper focuses on the research and development of molten salts including nitrate, fluoride salt, carbonate and multi-mixed molten salts at home and abroad. <<