In this paper, according to the actual parameters of Aizhai suspension bridge, dyanmic analysis was carried out though buliding a 3D caculating model on the finite element software. Meanwhile in terms of static stability we analysis the wind-induced lateral-torsional buckling and static stability numerical analysis and the wind-response analysis at design structure design wind speed for the bridge. As a result, it can guarant the secutity.%根据矮寨特大悬索桥实际参数，用大型有限元软件建立了空间模型对工程算例进行了动力特性分析，同时在该桥的静风稳定性方面做了静风扭转发散，静风稳定数值分析及本设计结构在设计风速下的静风响应分析，得出了相应的结构，从理论上保证了该结构的安全性。
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