Abstract: This paper based on the actual situation of the teaching of interchangeability and technical measurement in colleges and universities, combined with the characteristics of training applied talents, it analyzes the characteristics of the course content, and puts forward the teaching reform which improves the teaching method and enhances the interaction of the classroom. Taking the introduction of teaching as an example, it is proposed to introduce new concepts from the knowledge that students have learned. Taking the technical measurement content as an example to introduce the relevant key points , difficulties and related knowledge, as well as the experimental courses and theory courses of the combination of teaching methods and practice. Practice has proved that the teaching method not only enhances the students' engineering consciousness, but also makes the content of the course interesting.