BIM technology has become an important tool in road and bridge design. Through the application of BIM technology, the entire bridge process can be modeled to form a virtual bridge form. Through the simulation of bridge construction materials, construction techniques, and construction processes, a comprehensive analysis can be conducted to achieve visualization of the design and improve the efficiency of bridge design. This article mainly analyzes the advantages of BIM technology in bridge design, explores the application forms in bridge design, and proposes strategies to optimize bridge design, providing a certain reference for the improvement and optimization of bridge design work.