Cold chain equipment is defined from a supply chain perspective. All kinds of products have their uniqueness, and the supply chain of the products also has uniqueness; frozen products, due to the product requirements of the environment in which the product is usually low-temperature or low-humidity **** the same characteristics, so it is known as frozen products, frozen products of the supply chain known as the cold chain; used to manufacture low-temperature, low-humidity environment of the equipment, known as the cold chain equipment. Specific cold chain equipment are: low-temperature cold storage, room temperature cold storage, low-temperature refrigerators, ordinary refrigerators, refrigerated trucks, refrigerated containers, vaccine transportation vehicles, standby ice rows and so on.