Traditional Chinese arched timber lounge bridges utilize short timber structural components to form a large bridge span. The arched lounge bridges have beautiful shapes, ingenious structures and unique types of construction. This type of ancient bridge has important historical, artistic and scientific value. Now in China remain only about 100 traditional arched timber lounge bridges, which are mostly found in southern Zhejiang Province and Northern Fujian Province. They reflect traditional bridge construction technology and the wisdom of ancient people of China. In recent years, the destruction or damage to traditional timber arched lounge bridges caused by natural disasters such as typhoons and floods has occurred from time to time. Present research on traditional arched timber lounge bridges focuses primarily on their historical and artistic value, and the development background of construction technology, but there is little research on their structural performance, especially in-depth research on the wind-induced vibrational response of traditional arched timber lounge bridges to strong wind. In order to research the wind-induced vibrational response of traditional Chinese timber lounge bridges, a case study of Wenxing Lounge Bridge was carried out. Based on a precise survey of geometric dimensions, a calculation model of Wenxing Lounge Bridge was set up using finite element software SAP2000 and the dynamic characteristics were analyzed. This study includes the following aspects:First, fluctuating strong wind was simulated by the linear filtering method and the auto-regressive (AR) model, and the wind speed time history was generated using mathematical software MATLAB; Second, wind pressure coefficients applicable to the bridge were obtained through the CFD wind-tunnel simulation with the software FLUENT, since the current load code does not provide the suggested coefficient values; Finally, the strong wind pressure was applied to the model and the internal forces, and the displacement of structure were obtained. The results show that the main vibrational mode of the structure is the third vibration mode, namely the horizontal vibration. The wind effect on the inclined tri-segment arch members is bigger than that on inclined penta-segment arch members, whereas the wind effect on horizontal penta-segment arch members is bigger than that on horizontal tri-segment arch members. The stress of tri-segment, penta-segment arch members and upper, middle scissor braces is within the allowable strength, but the tensile stress of lower scissor braces exceeds the allowable tensile strength. The slipping-off of scissor braces will cause a sudden increase of axial compressive force, and will greatly reduce the lateral rigidity of the whole structure. The wind-induced vibration coefficient of the arched timber lounge bridge is 1.43—1.75. Therefore, the wind-induced response of traditional timber arched lounge bridges cannot be ignored. This study uses, as an example, Wenxing Bridge in Taishun, Zhejiang Province. The research results reflect the loads transferring law of structural members and the dynamic characteristics of the overall structure of arched timber lounge bridges under wind loads, as well as providing a theoretical basis for the wind-resistance assessment and the wind-resistant conservation of this type of traditional arched timber lounge bridges.