As a crucial component of airport terminals, the design and layout of concourses directly affect passenger experience and airport operational efficiency. This study conducts an in-depth analysis of the functional requirements, process organization, and spatial planning of terminal concourses, and proposes a standardized design method based on modular combinations. The proposed approach aims to achieve efficient construction and operation of terminal concourses through standardized practices in modular design, functional layout, and the combination of modules and units.