Abstract: A huge change in the development mode of the aerospace field is happening due to modern digital technology. As the cradle of aircraft, the development of wind tunnel must deeply grasp the new trend of digital development, actively adapt to the digital development mode of model-based system engineering (MBSE), and strive to promote the digital transformation of wind tunnel design, construction and operation. This paper introduces the development and application results based on MBSE in relevant industries at home and abroad, compares and analyzes the current situation of digital development of wind tunnels, points out the shortcomings of the existing development mode, and constructs a digital development mode based on MBSE. The design, construction, operation, and maintenance process of this model and its application in the development of a large wind tunnel are introduced in detail. Finally, in order to meet the requirements of model-based digital development of wind tunnels, a collaborative design and simulation platform is constructed, which provides effective support for further improving the level of digital development of wind tunnels.