Based on intelligent technology and clean energy, a city with zero carbon emission will be realized. According to the relevant data, we can improve the level of public services, optimize urban traffic and reduce urban pollution through digital and intelligent means, thus improving the quality of cities and the quality of life of residents. At present, China has not fully realized smart zero-carbon cities, but many cities are actively promoting the construction of smart cities and low-carbon cities to reduce the impact on the environment and improve the sustainability and ecological benefits of cities.