Cold storage is the infrastructure for the development of the cold storage industry, and it is also a complex of buildings that store goods under low temperature conditions. Food preservation is mainly based on the food cold chain. The perishable livestock and poultry, aquatic products, fruits and vegetables, and quick-frozen food are transported through pre-cooling, processing, storage and refrigeration to effectively maintain the appearance, color, nutrient composition and flavor of the food to achieve food The purpose of keeping quality and freshness and prolonging the shelf life of food is to adjust the demand of the off-season market and reduce the economic loss in the process of production and sales.

Today when food hygiene and safety are more and more important, fresh agricultural products such as meat and poultry, aquatic products, vegetables, fruits, eggs, etc., which are necessary in daily life, are purchased from the products, or after slaughtering and fishing, they are processed, stored, transported, and processed. Distribution, retail and other environments must always be in a suitable low-temperature control environment to ensure product quality and quality safety to the greatest extent, reduce losses and prevent pollution.

The food industry is my country's largest pillar industry. With the continuous development of the food industry, the demand for logistics in the food industry will increase. From another perspective, the food industry is the biggest contributor to the economic development of cold storage. At present, my country produces nearly 20 million tons of poultry and eggs and 61 million tons of fruits per year; there are more than 2500 meat food factories with an annual output of 60 million tons of meat, and the output is increasing at a rate of about 5% per year; more than 2,000 quick-frozen food factories , The annual output exceeds 8.5 million tons; there are more than 4,000 cold drinks industry, of which 200 are of a certain scale, with an annual output of more than 1.6 million tons, and the output is increasing at an annual rate of about 8%; there are more than 1,500 dairy industries with an output of 10 million tons , Increasing at a rate of 20% every year; 45 million tons of aquatic products, increasing at a rate of 4% every year. It can be seen that with the continuous development of the market economy and the continuous improvement of modern logistics systems, the industrial development prospects of the food cold chain are very broad.

The annual output of various types of food in my country reaches 1 billion tons, accounting for 16% of the total food in the world. Among them, the output of meat, fruits, and aquatic products ranks first in the world. However, at present, the annual loss of transportation and storage of finished products in my country's food industry exceeds 100 billion yuan. According to statistics, just because of the loss of cold chain food during transportation, the entire logistics cost accounts for 60% of the cost of perishable food. Cold storage is an important equipment in the transportation and storage of food. To solve the main problems faced by the food industry, it is necessary to start with cold storage equipment.

China's cold chain logistics started late and its development is lagging behind. There are still many problems in China's cold chain logistics model. Taking primary agricultural products as an example, the weakest are the two links of agricultural product purchase and wholesale. The quality of employees engaged in the purchase and wholesale of agricultural products is low. The environment of the agricultural product wholesale market is dirty and poor. It is a very common phenomenon that the trading venues and transportation processes of the products simply cannot meet the requirements of the cold chain. The fruit, vegetable, and poultry meat consumed by ordinary people in Beijing flows to supermarkets and fruit and vegetable shops through wholesale markets with poor environments such as Xinfadi, and finally to the people’s dining table.

In this process, the operators also try to improve the trading environment and transform the original wholesale market into a logistics center. However, due to lack of professional logistics knowledge, their decision-making is restricted and they often make wrong decisions. The basic requirements of the logistics center cannot be operated. There are many cases in Beijing. Therefore, to change this status quo, logistics professionals need to participate in decision-making and improve the cold chain logistics environment. This is a long-term project that requires joint promotion at all levels.