The invention discloses a Web3D network communication platform and a construction method thereof, and the method comprises the steps: integrating unmanned aerial vehicle data, remote sensing data, GISdata, DEM and other multi-source, multi-scale and multi-dimensional data by means of public data and related news information of a Chinese geological survey bureau, and building a multi-dimensional display interface of the communication platform. A 3D model is embedded in the website by adopting a WebGL. JavaScript is used for processing interaction operation between the webpage front end and a user, and the functions of POI point online construction, data uploading, online forum discussion, positioning, multi-dimensional virtual reality interface display and the like are achieved. A rear-enddatabase stores user POI data, forum data and related data, so that the user can check the data in real time, and knowledge transmission and sharing are realized to a great extent. The Web3D networkcommunication platform has a field practice communication function, and topographic map cognition, field route geological examination and mapping, typical geological phenomenon research and analysis and the like can be carried out in combination with practice requirements; and a traditional classroom education mode is broken through.