Some problems in the teaching of"Structure and Principle of New-energy Vehicle"for vehicle engineering major in undergraduate universities is analyzed in the paper.The advantages of VR technology in vehicle engineering teaching are discussed,taking the structure and principle of lithium-ion battery as an example to carry out the VR technology application of teaching design.New teaching method can make students fully immersed in learning,reduce the difficulty of learning,and deep visual stimulation can deepen the depth of students'understanding of knowledge.The research results of this paper can play a certain role in promoting the teaching of vehicle engineering and provide a reference for the application and development of relevant VR technology.