From a global perspective, the overall architecture of the city is designed to comprehensively consider the various components, levels, participating forces, and various influencing factors of the city, forming an executable, controllable, and sustainable development implementation plan to minimize the risks of construction, management, and operation; integrating emerging information technologies such as the Internet of Things, cloud computing, big data, and mobile Internet with various core systems in the city, breaking the management difficulties such as fragmentation, difficulty in command and coordination, and information asymmetry, and establishing an innovative urban operation model of cross-domain and cross-institutional collaboration.