Abstract: There are two modelling analysis methods for hybrid structure composed of space truss and concrete, one method is that the space truss and concrete supporting structure are considered separately, another method is collaborative modelling of the space truss and concrete supporting structure. The problems of the modelling analysis of the hybrid structure were introduced firstly. Based on the conception that complete design index met the specification requirements of GB 50011-2010, two modelling analysis methods of the hybrid structure were discussed for judging design index and designing reinforcing bar of the concrete members.