Abstract: Vocal music teaching mode under Internet + MOOC + mobile terminals is a fun teaching method of online learning, which can produce the benefits of famous teachers and social influence, be conducive to fragmented learning and mobile learning, enhance the inheritance of music culture, realize "making no social distinctions in teaching" and promote the formation of education big data. In vocal music teaching, the specific applications of the Internet + MOOC + mobile terminals teaching mode include optimizing the vocal music curriculum design and constructing a network platform with the help of mobile Internet, innovating teaching methods and adopting Internet information technology to update teaching content.