Taking Xiamen new airport project as an example, this paper analyzes the construction characteristics of airport and the necessity of introducing BIM technology into the construction process. In view of the problems existing in the implementation of BIM in the design stage of Xiamen new airport project, the construction party provides reasonable solutions based on its own situation, and also plans and analyzes the overall application process of BIM in the construction stage at the same time. Moreover, it selects the site selection of civil aviation weak current medium security monitoring for BIM application example analysis, so as to confirm the application value of BIM technology in airport construction.