Abstract:The construction of municipal road and bridge engineering is of great significance for promoting urbanization and ensuring traffic safety. The on-site construction of municipal road and bridge engineering is taken as the research object, and the key technologies of soft soil foundation treatment are deeply analyzed, and roadbed filling and compaction, pavement construction, bridge construction and other links, and combines engineering examples to analyze the key points of on-site management work such as construction organization, quality control, safety management, and cost control. By summarizing advanced experience, specific strategies such as strengthening top-level design, optimizing resource allocation, strict process control, and emphasizing technological innovation are proposed to provide reference and inspiration for improving the technical and management level of on-site construction of municipal roads and bridges.