Abstract: There are some problems in the traditional teaching of mechanical fault diagnosis course, such as outdated content, lack of perfect teaching system and single assessment method. It is necessary to revise the syllabus, optimize the teaching content system, and pay attention to using a variety of teaching methods in teaching, so as to improve students' learning interest and practical innovative ability. In terms of curriculum evaluation, the assessment of practical problems in complex projects is added on the basis of assessing students' mastery of basic theories in order to guide students to lay stress on the improvement of practical ability.