A wind-assisted underground bicycle transportation system, comprising an independently constructed underground bicycle lane in a subterranean area or an affiliated commercial district, ventilation equipment set on the bicycle lane, and an underground bicycle station. The bicycle station includes entrances/exits connected to the ground surface, pedestrian tunnels, functional components of the station, traffic control components, and video surveillance components. Compared to existing technology, this invention uses wind assistance to enhance the comfort of cyclists, making the bicycle mode suitable for medium to long-distance transport within cities, while also integrating with the needs of above-ground space development.