Abstract: Given the background of experimental teaching reform, this paper conducts the experimental teaching design of dynamic test data analysis of railway subgrade by adopting the idea of combining scientific research with experimental teaching, relying on the data analysis method of the subgrade dynamic response test under the train load, and combining with the drawing and analysis functions integrated by Origin software. In addition, the process and content of the experimental teaching are introduced, the teaching contents are expounded in detail, and the corresponding operation cases are given. Based on imparting traditional professional knowledge, the experimental teaching adopts new experimental techniques, updates the experimental contents, and improves the teaching methods. The practice indicates that students’ understanding of experimental phenomena and the scientific principles are generally deepened. This experimental teaching is seen as supplementary to the subgrade engineering course in the major of railway engineering.