The invention discloses a multi-engineering enterprise-level intelligent construction site block chain management method. The block chain management method uses an intelligent construction site platform management system, and comprises the following steps of S1, project progress intelligent management characterized by determining the logic relation lines of all working procedures, calculating a target progress plan through a software, determining a target completion construction period, and tracking and comparing the actual construction period and the target construction period. According to the invention, by arranging the intelligent construction site platform management system, and setting the management method based on the usage of the platform, the technical defects existing in all aspects of an existing management method are overcome, the enterprise production and operation management data is analyzed and displayed at a multi-level view angle, the layered authorization is carriedout, the safety of the data is guaranteed, the BIM technology is fused through the AR technology, the deployment is easy, the cost is low, the benefits are high, and various analysis data can be directly displayed in video images.