In order to meet the challenges of municipal engineering construction and management in the Qianhai cluster in Shenzhen, based on the combination of comprehensive integrated management theory and the full-process application of BIM technology, three basic models of geographic information, three-dimensional geology and urban planning of the new urban area were created for the first time in China, as well as various types of municipal engineering models such as roads, integrated pipe corridors, landscape gardens, etc. It integrates the multi-source heterogeneous information models of various housing constructions and public facilities in the area, and develops the integrated application of planning, design and construction based on BIM technology and achieve the development and application of the construction management platform during the construction process, It effectively solved the problems of "human management", "physics" and "affairs" in the implementation of large cluster projects, and established an integrated management model of municipal engineering organization integration, process integration and information integration in Qianhai cluster.