The experiments of traffic engineering have many shortcomings, such as systematic lack, non-flexibility of the experimental contents and methods and so on. In view of this, the paper designs three comprehensive experiments (traffic survey and design, transportation planning and control, the materials testing of traffic engineering) through integrating and optimizing the theory and practice contents of traffic engineering training plan of undergraduate students in our school. Each comprehensive experiment includes many sub-experiments; each sub-experiment also includes many single experiments. The comprehensive experiment is much knowledge and broad, and fully embodies the basic, comprehensive and innovative characters. It also can greatly improve the learning enthusiasm and comprehensive quality of students, and have the important meaning.