As an integral part of higher education, music education plays a fundamental role in promoting and enhancing comprehensive competency of undergraduate students. This paper conducts multi-dimensional deconstruction of the comprehensive competency of students, based on quantitative analysis, proposes the relations between music education and moral quality, humanistic quality, mental health, intelligence development and innovation ability. Through quantitative analysis on relations between music education and multiple competencies, this paper further validates that music education plays an irreplaceable role in enhancing students’ overall competency. Our research mitigates deficiency in lack of quantitative analysis on music education among existing researches, and provides valuable insights into how universities and colleges should improve input, curriculum setting and evaluation on music education.