In recent years, BIM technology has been widely used in the building engineering, which improves the efficiency of the construction industry greatly.However, structural analysis has not been integrated to the BIM technology effectively till now.In order to achieve the conversion between BIM model and structural analysis model both on the expression system and the data format, this paper gives anintegrating method including geometry cleanup and meshing, by which we can get beam elements and shell elements from BIM model.Case study showed that this method can be used to get precise finite element model for structural analysis from BIM model, which has a great value in terms of future application.