China is a big agricultural country, but due to the perishable characteristics of agricultural products, the cost of circulation is high and the loss is great. In order to effectively reduce the loss rate of fresh agricultural products, it is necessary to refrigerate them at low temperature. However, in the process of transportation, the common technical problem is that the temperature control is not in place, which leads to the deterioration of products and unnecessary waste and economic losses. Therefore, the study on the shelf life of fresh agricultural products is helpful to improve the economic benefits of enterprises.