Abstract: The Highway Bridge Structure Designing System (GQJS) is a finite element analysis software for bridge independently developed by the Research Institute of Highway Ministry of Transport, which is able to parametrically establish a 3D finite element model using basic solid, shell and beam elements for the static and modal calculation and analysis of space structures. By using the system, complicated bridge structures can easily model for 3D finite element analysis, including the cable stayed bridge, the suspension bridge, the rigid frame bridge, the composite girder bridge and the curved bridge. Suitable elements are applied to simulate according to the structure of bridge, e.g. the concrete bridge adopts 12 node solid element, the steel box girder bridge adopts the plate and shell element, and the steel bar, the cable and the supportadopt the rod unit. On the system, a 3D model display platform is developed using the OpenGL graphic function library, which enables the browse and access of the 3D finite element bridge.