近年来,在公路施工工程中,路基问题一直影响着公路的质量。影响路基稳定的因素有很多,其中,排水问题一直居于首位,亟待解决。伴随施工技术的进步,路基排水设施和施工技术也越来越多样,文章就公路路基的排水设施作了分析,以期保证路基的稳定。 In recent years, the problem of roadbed has been influencing the quality of roads in highway construction. There are many factors that affect the stability of the roadbed, among which the drainage problem has always been in the first place and needs to be solved urgently. With the progress of construction technology, the drainage facilities and construction technology of subgrade are more and more diversified. The paper analyzes the drainage facilities of highway subgrade in order to ensure the stability of subgrade.