Abstract: With the development of society, the task of large airports is heavy and increasing, and the disadvantages of artificial technology of airports are becoming increasingly prominent. In order to realize intelligent management of large airports and improve the problems, some airports have introduced internet of things technology. Because the Internet of things technology can be more easily managed, the technology plays an important role in building a safe, green and labor-saving intelligent airport. Taking the wisdom field area of Pudong International Airport as an example, this paper introduces the water quality on-line monitoring system of wisdom airport, which adopts 4G🙆🏽‍♀️、narrowband internet of things (NB-IoT), optical fiber, global positioning system (GPS) and other related materials technology to carry out accurate construction and layout, and realizes the management objectives of data acquisition, data processing and real-time transmission of water quality information.