The application of BIM technology is becoming actively important in the field of AEC industries. In recent years, the application numbers of complex special-shaped steel bridge has been increased in China, but during the construction stage, the quantification survey is still mainly using traditional ways. By implementing BIM technology in Wushan Daning River Bridge of Zhengzhou-Wanzhou Railway as an example, this paper introduced a new method of quantification survey of steel structure bridges based on BIM model, developed a set of standardized modeling process of steel structure bridges, using VB language to redevelop CATIA to achieve automatic batch filling of quantification survey forms, thus significantly improved the quantification survey of complex steel structure bridges′ efficiencies and accuracies.