This paper focuses on the application of digital technology in the fine management of materials during the construction process of engineering projects. It first analyzes the significant demand and challenges faced by enterprises and project departments in material digital management. Secondly, a material receiving, issuing, and inventory management system was developed, reshaping the management systems and workflows for production, cost contracts, materials, and technology on construction sites, thereby enabling refined management of material application, receipt, issuance, and inventory. Finally, a project in Quzhou is used as a case study to verify the economic benefits of the material management system.