Question 1: There are many kinds of fresh food. Each kind of fresh food is divided into different varieties according to factors such as origin, season, specifications and quality, and each variety has a specific regional market, customer base and sales channels. Fresh retail is destined to be an industry with high requirements for refined management from the source of products. Question 2: The chain is long. Starting from the post-production processing of agricultural production, the difficulty of fresh supply chain management has risen sharply. According to the category of fresh agricultural products, the processes and output requirements of cleaning, screening, sorting, productization processing, packaging processing, preservation processing, storage processing and food processing are different, and the chain is generally long. Problem 3: easy to wear. After agricultural products enter the circulation link, according to the shelf life of agricultural products, we must flexibly handle the circulation path planning and logistics network layout. Fresh agricultural products are easy to consume, and food markets, supermarkets, fresh e-commerce and community e-commerce have extremely high requirements on delivery timeliness, which directly affects the sales cycle, thus affecting the sales speed and breakage rate. Question 4: Absence of management. The construction of cold chain logistics involves the construction of cold storage, the equipment of refrigerated trucks and the management of information flow, which improves the timeliness of frozen processing, frozen storage and refrigerated transportation. Moreover, cold chain equipment occupies a large amount of funds, and fresh retail requires higher financial strength for distributors. There are many process links, and if the link management is not in place, it will greatly affect the efficiency of the supply chain.