The traditional dock loading uses the two-dimensional plane loading coordinate system, and the loading precision data is low in transmission efficiency and can not be shared. In order to solve the above problems, a digital dock system is constructed. Based on the digital dock three-dimensional measurement and control network, the paperless transmission, real-time sharing, and statistics and analysis of dock loading data are realized with the digital dock precision management system so that the precision data can truly realize the interconnection of front-to-back production procedures. The practical application shows that the digital dock can greatly improve the loading positioning precision and operation efficiency when used in the continuous simulation loading of multiple blocks, loading positioning of blocks, and docking positioning of ship shifting in the dock.