Currently, the application of 3D simulation in the management of urban planning is quite limited. This paper analyzes the significance of application of 3D simulation technology in the total process management of planning, studies the key technology including virtual reality, massive multi-source data storage management, 3D temporal GIS and so on. Combining with the practical application, it discusses the 3D simulation application of the total process implementation steps of urban planning management, and finally advances recommendations for the future development.