Combining with roadbed counter-digging and backfill engineering at contraction section of national highway line No. 208 reconstruction project, this thesis introduces counter-digging and backfill methods of low filling soil roadbed, and summarizes some technological points, which has laid a foundation for the application of counter-digging method in roadbed engineering.%结合国道208线改建工程某合同段路基反挖回填工程施工实例，介绍了低填方土质路基反挖回填施工方法，并总结了一些技术要点，为推广该施工方法在路基工程中的应用奠定了基础。
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