Yun Guan cold chain is a market operated in the mode of shopping mall, which has the following characteristics: First, it mainly deals in frozen food (aquatic products, seafood, meat and poultry), specialty products, and agricultural and sideline foods, and adopts a comprehensive mode of "one-stop procurement" to face the market, so buyers do not have to deal with several markets, thus reducing mining costs and indirectly lowering prices; Secondly, the cold chain near Yun Guan is the nearest market to the center of Guiyang and the most convenient market to the surrounding cities and counties. Compared with other agricultural and sideline products and frozen products markets in Guiyang, the regional transportation advantage is extremely obvious; 3. New-Yun Guan Cold Chain is equipped with more than 50,000 tons of modern cold storage, with super-perfect facilities such as hotels, restaurants, banks and supermarkets, as well as the platform support of three-dimensional marketing service systems such as entrepreneurial support, integrated promotion, online marketing and auction center. It is a new market with benchmarking significance in Guizhou Province.