As an important hub in the transportation system，the airport currently is facing deficiencies in many areas，such as surface awareness，interconnection，digital operation and global intelligent control，resulting in a large amount of stress on ensuring airport security and a lack of efficiency in intelligent operation. To solve the above problems，research and application of cutting-edge technologies such as digital twin，artificial intelligence，5G and the Internet of Things will enable the key technologies in the aspects of all factor multi-source intelligent perception，integrated interconnection of air and space，digital transformation of the physical world and multi-subject intelligent cooperation，so as to realize airport digital twin，insensitive passenger travel，unmanned baggage handling and operation support in the flight zone，as well as the transformation of traditional infrastructure into integrated “new infrastructure”，and building a smart airport with comprehensive IOT of production factors，data sharing，collaborative，efficient and intelligent operation，which will greatly improve the intelligent operation level of aviation hubs and promote the construction of intelligent transportation system in China.