Abstract: Strengthening the training of data processing and analysis in experimental teaching is not only a new requirement after the transformation of the curriculum system of transportation engineering, but also an important content to strengthen the cultivation of students’ practice and innovation ability. According to the characteristics of experimental teaching of the principle of traffic information transmission, this paper puts forward the reform and practice idea of strengthening data analysis training on the basis of existing experimental projects. Taking the WLAN network QoS test and analysis experiment as an example, this paper introduces the teaching objectives, teaching content, teaching mode and the innovative impact on the experiment after strengthening the data analysis training. Practice shows that the experiments after the reform and innovation have deepened students’ understanding of the concept of curriculum knowledge, and effectively exercised students’ ability of analyzing problems, solving problems and engineering practice.