The introduction course in vehicle specialty is an important introductory course to guide college freshmen to understand automobile major,love automobile major and learn automobile specialty.On the basis of analyzing the content and characteristics of the introduction course of the traditional vehicle specialty,the paper,combined with the training objectives of applied undergraduate talents,discusses the current problems existing in the course teaching.According to these problems,the Trinity teaching reform mode based on the theory teaching collaboration with practice teaching was put forward,and the reform practice and application were carried out,the teaching contents were arranged scientifically and reasonably by use of the classroom,the laboratory and the off-campus practice base,thereby students' active learning theory and practice ability were cultivated,students' professional cognition and learning interest were enhanced,the satisfactory teaching results were achieved.