In recent years, the quantity of airport increased from 175 in 2010 to 241 in 2021. The development of smart airports will intensify the competition among civil airports and bring greater convenience to passengers' travel. However, for airport, it is required to strengthen the management level and improve the service level. The management of airports will be a reform. With the continuous development of information technology and the continuous business expansion of civil airports, the needs and understanding of smart airports are constantly being recognized and updated. The rapid development of smart airport requires the use of a new generation of information technology, wireless transmission, big data mining, cloud computing, information security and other key technologies, to achieve point-to-point constant interconnection, information collection and processing, business automation, personalized service, humanized function, management streamlined model innovation. We will use science and technology to promote innovation, energy conservation and emission reduction, and promote the healthy development of civil aviation industry. At present, the construction of smart airport in China is still in its initial stage. However, with the maturity of information technology, the development of big data, Internet of Things and other industries, and the continuous increase of the number of airport construction, the construction industry of smart airport is expected to become the next 100 billion market.