There are a lot of innovations in Chongqing Chaotianmen Yangtze River Bridge project. The design, analysis and calculation based on the theory of classical mechanics were carried out by the analysis software such as the bridge structure design system, MIDAS, ANSYS and STS, and the drafting software such as AutoCAD, 3dsmas and Photoshop. The main achievements are as following: 1) Being the arch bridge with the longest span among all the existed ones; 2) Utilizing the spherical support with the largest bearing capacity up to now all over the world; 3) Adopting three kinds of materials and variable widths for the main truss rods, with the maximum thickness of 80mm for the splicing plate, both were the first applications in China; 4) Adopting the prestressed system in the steel bridge permanent structure for the first time in China to reduce the steel consumption and cut down the cost; 5) Overcoming the most difficult points in the world including the traffic load of upper-lower ten-lane road and two-lane track, the construction of multi-cellular triumphal arched main pier,and the road-track dual purpose & arch-girder, etc.