Supply chain system refers to the integration of key business processes and relationships in the whole chain from the original material supplier to the end user, providing goods, services or information for end customers.

Supply chain is a functional network chain structure around the core enterprise, through the control of information flow, logistics and capital flow, starting from the purchase of raw materials, making intermediate products and final products, and finally sending the products to consumers by the sales network, and connecting suppliers, manufacturers, distributors, retailers, and end users into a whole functional network chain structure. It is not only a logistics chain, information chain and capital chain connecting suppliers to users, but also a value-added chain. The value of materials in the supply chain is increased due to processing, packaging, transportation and other processes, which brings benefits to related enterprises.