The invention discloses a swing aeroelastic model and a shock-test wind tunnel test method thereby and belongs to the technical field of structural wind-resistant design and test for building engineering. The swing aeroelastic model comprises a high-rise building rigid model, a rigid support rod and a support. The high-rise building rigid model is disposed at the upper end of the rigid support rod which is disposed vertically and is located above the support. The swing aeroelastic model further comprises a torsional vibration layer, an X-axial vibration layer and a Y-axial vibration layer, which are horizontally disposed on the support. The rigid support rod is connected with and penetrates through the vibration layers. The shock-test wind tunnel test method by the swing aeroelastic model includes the steps of firstly, setting the swing aeroelastic model; secondly, respectively regulating rigidity of springs and mass of mass blocks in the torsional vibration layer, the X-axial vibration layer and the Y-axial vibration layer according to test requirements so as to meet the test requirements; and thirdly, setting the swing aeroelastic model meeting the test requirements in a wind field, and performing wind tunnel test. Axial vibrations are not coupled, and more accurate test results can be obtained.