Abstract: In recent years, the development level of air transportation industry is constantly improving, air fl ight is favored by people with the advantage of high speed, and more and more people take air as the preferred way of transportation. As a result, the scale of airport construction of air transportation is gradually expanding, and the tower building is an important guarantee structure for the smooth operation of air fl ight, so the optimization of tower design level has become an important task. Based on this, this paper studies the process design of the airport tower building, fi rst introduces the basic characteristics of the tower building, and then analyzes the key points of the process design.