The application of radiographic flaw detection technology to bronze cultural relics began in the 1950s. With the continuous improvement of the accuracy of computed tomography (CT) technology, the high-precision industrial-grade CT system integrates modern radiographic detection technology, automatic control technology and computer processing technology, and has shown increasingly obvious advantages in the conservation and restoration of bronze cultural relics. In the case of the restoration of a Spring and Autumn Period bronze Ding unearthed in Nanjing, high-precision industrial CT technology was applied to the restoration of a traditional bronze cultural relic, and the detection image data were combined with visual augmented reality (AR), in order to provide a more accurate basis for the formulation of restoration plans and also a more intuitive and convenient operating environment for restoration intervention. The application of X-CT combined with AR technology is a new addition to traditional bronze restoration techniques.