Smart city is a new generation of information integration technologies, such as Internet of things, cloud computing, big data, spatial geographic information integration, etc. , new Theories and models to promote the intellectualization of urban planning, construction, management and services. Dalet Shengzhi City integrated solution, through the perception layer, infrastructure layer, platform layer, application layer of the four-tier technology architecture to build. Through the city's urban management equipment, traffic facilities, power facilities, underground pipe network and other infrastructure, using smart chips, sensors, AI analysis and identification technology, realize the perception of the running state of the city. The infrastructure layer encompasses the underlying network layer and the data center. The basic network layer for the interconnectedness of all things in a city is composed of high-speed, ubiquitous and reliable optical fiber network, Autbus bus technology, IPv6 + Mesh/NB-IoT/Lora wireless network, etc. , and carries on the data real-time transmission processing. The platform service layer processes and processes the data through the smart city management platform, the smart city management, the smart city administration, the smart lighting, the city big data and so on. Through intelligent algorithm analysis, the application layer forms decision-making information, and effectively realizes the intelligent management and service of the city. The construction of smart city is the need to realize the sustainable development of city and the development of information technology, and it is also the strategic choice to improve the comprehensive competitiveness of China. Smart city solutions for Dalet, which uses next-generation information technology to support the transformation and upgrading of traditional infrastructure, uses smart light poles as its core carrier and adopts the self-developed smart city integrated management platform, provide Smart Road, smart transportation, Smart Municipal, smart city management, smart lighting, urban big data services.