Abstract: In recent years, the advantages of prestressing technology have become increasingly prominent in the field of highway and bridge engineering. In engineering structures, people are more and more inclined to use prestressing technology to design structures. For prestressed concrete bridge engineering, the application of various detection techniques can effectively obtain the problems existing in prestressed concrete structures and further improve the performance of bridges. However, there are still many technical problems in the application of prestressed concrete bridge detection and reinforcement technology in bridge engineering, and it is necessary to increase technological innovation in the future. Based on this, this paper focuses on the application of prestressed concrete bridge detection and reinforcement technology, which has certain guiding significance for the evaluation and maintenance of bridge structure performance.