Abstract: A spline aeroelastic model of the Chinese Central television ( CCTV)tower,was designed according to the law of similarity and was tested in an atmospheric boundarylayer wind tunnel. The dynamic bending moment was measured using strain gauge.Thelocus of wind induced vibration of the antenna tip and the tower building wais taken by useof the method of light-point of optical fibers,The dvnamic characteristic of response of theTV tower to wind was obtained.