Abstract There are some practical problems in bridge engineering, such as high construction risk, special construction technology, complex construction equipment and so on, which lead to high difficulty in the construction activities of bridge engineering, especially large-scale bridge engineering. With its utilization in bridge design, BIM Tech can effectively guarantee the amelioration of bridge design quality and efficiency, which has important research value. Based on this, this paper first analyses the connotation and value of BIM Tech, and then studies the utilization points of BIM Tech in the bridge design stage. Finally, the utilization path of BIM Tech in bridge design is given.