Abstract: With the development of urban modernization，urban underground spatial information is a key point of urban underground pipe network sharing. Based on modeling of virtual reality technology, this paper proposes a threedimension pipe network modeling. The 3D underground pipe network is realized, and the urban geographical distribution information of over ground and underground are managed and analyzed, which provides the decisionmaking platform of 3D visualization for urban planning, construction and geological prospecting and so on.

Key words: urban underground space, virtual reality, Multigen Creator, OpenFlight API