In the field of practical engineering, there are a large number of nonlinear dynamics problems of fluid-solid coupled system, especially the vibration of cable.With increasing the span.the vibration of the cable becomes more evident.The cable may be covered with ice in certain weather conditions and the cross section of the cable may not remain circular.When subjected to the steady-side wind.the iced cable has large-amplitude and low-frequency galloping nonlinear oscillations.The galloping can lead to severe disruption [1,2], therefore., the study of galloping has important significance in practical applications and provides a theoretical basis and numerical reference for the design and application of cable structures.