Commercial refrigerator is the product of market economy. With the development and growth of major beverage, ice cream and quick-frozen food manufacturers, the market scale is expanding, and the product form is gradually subdivided. At first, incubators were generally used to keep the temperature of goods in the market. Later, with the emergence of commercial refrigerator, ordinary foam door freezers were used to store drinks and ice products for supermarkets, street stalls and other sales. The rapid development of FMCG led to the development and listing of commercial refrigerators. Because the display is more intuitive, the storage temperature is more professional and the use is more convenient, The market scale of commercial freezers has expanded rapidly.