In this paper, the ripple web composite box girder bridge (50m+80m+50m) of Xingtai Xing Heng highway segment was regarded as an engineering example, the model of ripple web composite Box Girder Bridge was established by the finite element software Midas. The basic mechanical properties of box girder of different geometrical parameters on rigid web were analyzed, the results show that the deflection of box girder is very small due to the variation of geometric parameters of the web. Besides, it is favorable to reduce the length of straight line segment. The results also show that the torsional stiffness of the box girder can be increased obviously with the corrugated web relative to the flat web plate, and the greater the bend angle, the greater the torsional rigidity of box girder. Additionally, the increasing of the thickness of the web can improve the performance of box girder.