In the construction of expressways,the test and detection of raw materials and roadbed is the cornerstone of ensuring the quality of the project,only by strictly controlling the quality from the source,can we ensure the smooth progress of the project construction,the article focuses on the test and detection methods of highway raw materials and roadbed,and strives to provide practical and specific reference for the industry,in order to ensure the quality and efficiency of construction at the same time,contribute new thinking and insights to the construction of expressway.