The full industry chain model refers to a business model that extends to the upstream and downstream of an industry after an enterprise has established a competitive advantage in a certain link in a certain industry. It can not only improve the competitiveness of the enterprise, but also increase the source of revenue and profit. The core of the full industry chain is the synergy effect. By establishing a synergy network, the relationship between your enterprise and upstream and downstream will be transformed from a traditional buyer-seller relationship to an internal collaborative relationship, so as to reduce transaction costs and transaction risks and increase the dependence of upstream and downstream enterprises on you.