Abstract: With the continuous development of China's economic level and the continuous improvement of people's living standards, China's construction industry has developed rapidly. At present, it has experienced a stage from large-scale expansion to the coexistence of new construction and maintenance. Therefore, structural reinforcement and maintenance of existing building projects has become a hot topic of current concern. In view of the most concerned problems in the current construction industry, this paper describes the reasons for structural reinforcement in construction projects and the application status of structural reinforcement technology in construction projects, and discusses the application of structural reinforcement technology in construction projects, with a view to providing reference for the development of the construction industry.