Abstract: In the construction of roads and bridges, the factors affecting the project quality come from many aspects. Analyzing the basic structure of road bridges, it is found that the concrete structure is the core. In order to ensure people's travel safety, the construction quality of road and bridge projects must be improved. Based on this, this article analyzes the reasons for the formation of concrete cracks, and proposes effective treatment measures for concrete cracks in order to provide references for related construction.