To design the logistics plan for transporting grain from the north to the south, and transport the corn from Heilongjiang to the feed factories and farms in the south; Overall planning and design of the scheme to improve the efficiency of the grain circulation link and reduce the loss in the circulation process... This is the work of Chen Xiuxian of Xiamen Xiangyu Co., Ltd., who is a grain supply chain manager. Supply chain managers reduce losses through more refined supply chain processes, improve supply chain operation and management level and overall efficiency, and promote the collaborative development of upstream and downstream of the industrial chain. Industry insiders predict that the total demand for supply chain managers in China will reach about 6 million in the next three years. ——Chen Xiuxian, who has groped to become a "national technical expert" on the dark land, is a supply chain manager with rich front-line practical experience. In 2017, after graduating from Renmin University of China with a major in resource and environmental economics, he joined Xiamen, a bulk commodity supply chain service enterprise, and grew along with the development of the industry. Chen Xiuxian said that only by deeply participating in the industrial chain can we truly see the pain points of the industry. "Compared with other mineral products or plasticized products, crops have an obvious feature that their production ends are extremely dispersed." Chen Xiuxian said that, taking corn as an example, the company's annual business volume reached ten million tons, which corresponds to nearly 16 million mu of arable land based on the corn yield of 1200 jin per mu. The corn will be transported to the purchasing factories, then to the ports, and then to the feed factories and breeding farms in the south. The corn will be harvested, purchased, dried, stored, logistics, and processed. This is the corn supply chain. There are many channels in the grain industry. Experienced grain brokers can roughly calculate the average water content of a piece of corn field through simple sampling. Chen Xiuxian followed them to the field and learned to bite corn with his mouth to measure the water content of corn. He also followed the whole process of quality inspectors, dryers, and warehouse keepers, and gradually learned where the key points of each link were, where the food was wasted, and which link could improve the quality and efficiency... After several years of grassroots trial and error, Chen Xiuxian has greatly improved his professional skills and summarized a set of methods to reduce the loss of food in the circulation process, Practice the principle of "storing food in technology" with practical actions. In 2021, Chen Xiuxian participated in the National Supply Chain Competition. With his rich practical experience and solid theoretical research in the agricultural field, he stood out from 1699 competitors and won the first place, becoming the "national technical expert" assessed by the Ministry of Human Resources and Social Security. ——The policy support industry has ushered in rapid development. Chen Xiuxian has been working in the past few years and is catching up with the rapid development of domestic supply chain management. In October 2017, the General Office of the State Council issued the Guiding Opinions on Actively Promoting Supply Chain Innovation and Application, which proposed that "by 2020, a number of new technologies and models for supply chain development that are suitable for China's national conditions will be formed, and a smart supply chain system covering China's key industries will be basically formed." In April 2018, the Ministry of Commerce, China Federation of Logistics and Procurement and other eight departments jointly issued the Notice on Carrying out the Pilot of Supply Chain Innovation and Application, to carry out the pilot of supply chain innovation and application in cities and enterprises nationwide. thereafter