In China and even world-wide,the method of statics is often use statics point of view to design the formwork support system,which is one of the important factors that leads to collapse of high formwork construction.In order to reflect the real condition of the structure,it requires dynamics rather than statics to design and analyse.Through transient dynamics of the finite element,the mode of high formwork under freely falling shocking was simulated.The displacement and stress of static and dynamic were obtained.Compared with the theoretical method,it was verified the relationship between the coefficient of freely falling chocking and the falling height.