Abstract: Suspendome is a prestressed steel structure that is mixed rigidity and flex ibility. There are few actual structure and construction experience, so the analysis of construction process of a suspendome becomes increasingly important. Based on the non_linear finite element theory, differentiating initial prestress satate and zero state of suspendome, it is pointed out that the construction of suspendome is a sequence process from zero state to initial state. The release tension method can be used to simulate and analyse the construction process. By analyzing 2008 Olympic Games badminton gymnasium, the conditions of construction site are considered and tensile sequence of lower cable_strut is also decided, that all course analysis of the construction is simulated.