Abstract:The traditional two-dimensional pipe network GIS system has no longer met the needs of current social and economic development. From the transition perspective from 2D pipe network GIS technology to 3D pipe network GIS technology, several key technologies in the construction of a 3D underground integrated pipeline management system are discussed, which including three aspects of simultaneous browsing on the ground and underground, 2D and 3D linkage analysis, and 3D pipeline analysis.