Liuzhou Shuangyong Bridge spans the Liujiang River. The main bridge is a three-span continuous steel box girder suspension bridge with a single main cable gravity anchorage suspension cable structure. The main bridge is constructed by means of the main cable erection and the box girder pushing synchronously, and the system conversion is realized by the derrick tension. The unique main bridge structure and novel construction procedures add highlights to the construction process of the bridge.