Abstract:With the rapid development of digital technology in bridge engineering, the technology is applied deeply in the design stage and construction stage of bridges. But there are few applications in the bridge overhaul engineering. its application is less in at present. Relying on the road and bridge overhaul engineering in Zhejiang, the digital application in the overhaul process of cultural relic rivet steel truss bridge is introduced in detail, such as the 3D model parametric establishment, 3D dynamic simulation of scheme, 3D laser point cloud scanning and handheld white light scanning, which provides a certain digital reference for the maintenance of similar bridges in the future.