Abstract:With the development of transportation industry, more and more bridges with long spans and high complexity are adopted, and BIM Technology is more and more widely used in such projects. The design essentials of an asymmetric steel arch bridge are sorted out. The design process and design difficulties of this kind of bridge are summarized from the design perspective. BIM 3D technology is adopted to participate in collaborative design. The role and value of BIM Technology in the design process are discussed.