Abstract: Smart city construction should not only provide "wisdom" to things of the city, but also pay attention to improving the quality of people in the city. At the digital age, the main characteristics of a smart city are that the urban infrastructure is fully intelligent, and deeply connected with the technology of big data, cloud computing, Internet of things and artificial intelligence: urban operation and management are highly intelligent and to a considerable extent re-structured by information technology, the urban economic structure will be upgraded; new forms of business, such as the digital economy, the sharing economy and intelligent manufacturing take up a large proportion; and all kinds of ubiquitous self-service platforms have become the important fulcrum for residents to step into the wisdom stage in their daily life. The construction of smart city requires residents to have the ability to live independently, seek development and serve others and the society by using media information technology. There is a coupling relationship between promoting the construction of smart city and improving residents' media information literacy. Improving residents' media information literacy is conducive to fully releasing the construction vitality of smart city, and the construction of smart city creates a favorable external environment for residents' media information literacy. To promote residents media information literacy under the construction of smart city, functional departments of responsible government should plan and deploy according to apange principle, for relevant education and training, social organizations; enterprises and institutions should provide training, consultation and guidance services according to genus dominant principle; while, resident individuals should actively strengthen the autonomous learning, then play a synergistic effect.