Dong ethnic group big song is a general term for the Dong ethnic group's unaccompanied and unconducted multi-voice folk songs. It includes voice songs, narrative songs, children's songs, stepping hall songs, and road blocking songs. "Many low and one high" is its traditional voice combination principle, and beauty and harmony are its distinctive artistic characteristics. The singing teacher teaches the song and the singing group sings is its national inheritance method. It carries and conveys a nation's lifestyle, social structure, human ethics, customs, wisdom and other vital cultural information.