侗族劝世歌是侗族人民用于社会交往和发生纠纷时劝人和解的民歌。本文基于语言功能的视角简要地诠释了侗族劝世歌的语言学渊源,详尽地论述了劝世歌对侗族青少年具有道德教化和协调社会关系的功能。这些功能是任何教科书都无法替代的,因此,应采取有效的施救措施来实现其可持续发展,发挥其更多的功能为社会的和谐服务。 Dongs urging Shih-tzu is a song sung by the Dong people for persuading people to reconcile themselves when they used social exchanges and disputes. Based on the perspective of language function, this article briefly explains the linguistic origins of the Dong people’s advice on the worldly songs and elaborates the function of persuading them to moral education and coordinating the social relations among the Dong youths. These functions are irreplaceable in any textbook. Therefore, effective rescue measures should be taken to achieve their sustainable development and give play to their more functions to serve the social harmony.