Abstract: There are some problems in the pipeline engineering, such as low efficiency of three-dimensional modeling, difficulty of data fusion and complex underground conditions. Taking a pipeline project as an example, this paper proposes a set of visual modeling methods including new pipelines, current pipelines, three-dimensional geology and oblique photography. Firstly, BIM technology is used to build a new pipeline model. Secondly, the current underground pipeline and borehole data are obtained through geophysical prospecting technology and drilling technology. Based on Visual Studio, Revit is redeveloped to parametrically generate the current pipeline model and three-dimensional geological model. Then, the UAV oblique photography technology is used to quickly obtain the surface image and construct the three-dimensional real scene model on the ground. Finally, through HTML, CSS, JavaScript and other technologies, combined with the Cesium engine, the above models are lightweightly integrated on the Web. The platform also develops practical tools such as real-world measurement, transparency and multi-layer management, and AR on-site assistance to improve planning and design efficiency, reduce construction costs, and shorten construction cycles. The method proposed in this paper can realize the rapid construction of the three-dimensional model of the ground and underground pipeline engineering and the lightweight integrated display of multi-source data, and provide a new solution for the digital delivery and application of pipeline engineering.