This case is located on the west side of the intersection of Wensan Road and Moganshan Road in Hangzhou, at Shentangqiao Station of the Hangzhou Metro Airport Express. The project has a superior transportation location, carrying a large number of people in the city and representing the city's image. "Subway coverage" and "transportation core" mean more constraints. How to balance the concession, infiltration, and interaction with the city under restrictive conditions is the key point of this case. Technically, it is necessary to convert the air shaft reasonably to maximize the public space. The exterior adopts a wind tunnel curtain wall, which turns disadvantages into advantages. By utilizing the power of the subway's inlet and outlet wind, the wind tunnel curtain wall maintains a dynamic effect, achieving harmonious unity in technology and design.