As the market demand and size of the industry in China's F&B industry continues to expand, companies rely on technology for effective supply chain management and digital application reform in the F&B industry to drive brand enhancement in the face of the three fastest rising costs: raw materials, rent and human resources. This thesis proposes an alliance system model based on blockchain technology and theory. The model introduces decentralisation, consensus and trusted traceability features to the current state of restaurant market operations, facilitating regulation and reducing costs. The model uses the competition and cooperation formed between shops as an application case to simulate the relationship between international multilateral trading economies, providing new ideas for exploring new models of international trade relations.