Although Nanguan Singing in the folk did not establish a complete theory, the author has obtained a basic understanding on the mng-thâu(tune family)during her undergraduate years, as a foundation of further studies. In this essay, the author analysed the structure of music in her recital(Lu Ying Yu graduate concert)which contains Long, medium, and short Gunmen series repertoire, and tried to find an interpretation through properties of lyrics and voice, to enhance the relationships between Nanguan Singing and its theory, enriching the connotation of the author’s Nanguan Singing