Through such technical means as 3D visualization, satellite remote sensing interpretation, video structured analysis, intelligent hardware for the IoT, the intelligent management platform based on smart city management is built. With the three-level urban management system of urban management bureau, street office and neighborhood committee as the foundation, a new mode of smart city management is built. This mode integrates perception, analysis, decision-making, command and supervision. Through participation at multiple levels, urban management is deeply integrated with social governance.