The invention relates to a method for managing materials on a construction site, comprising the following steps: dividing the material stacking site on the construction site into multiple areas, drawing each area on the general construction plan and storing them in the background server, and The material type information is entered into the background server to form a material database; at the entrance of each area, a camera with the first highest pixel is installed and a signboard with a QR code is installed; multiple second highest pixels are installed inside each area Camera device; during the feeding and shipping stages, the first high-resolution camera device automatically scans vehicle and cargo information, and updates the material database; the background server forms a material entry and exit account according to changes in the material database. The invention can solve the problem of chaotic and disorderly material management on the construction site at present, realizes automatic identification, intelligent storage, information sharing and intelligent location finding of the on-site materials, simplifies the process of material storage and use, and improves management efficiency.