Music therapy is a relatively mature marginal subject at present, and it is also a relatively common treatment method. This kind of treatment can better help college students get rid of bad psychology and guide their psychology to develop in a healthy direction. Mental health is one of the important indicators to measure the comprehensiveness of human quality and plays an important role in the sustainable development of human beings. Music therapy plays a very important role in college students’ mental health education. As a marginal subject, music therapy combines music, medicine, and psychology, which is beneficial to alleviate students’ bad emotions and psychological problems, and helps college students form a sound personality. Using music therapy can let college students vent their emotions in a suitable environment and atmosphere and then guide them correctly. This paper introduces the effectiveness of music therapy in college students’ mental health education and then puts forward important measures to promote the implementation of music therapy in college students’ mental health education.