This paper’s purpose is to observe the differences in language use between South Korean and North Korean language. In order to survey, this paper analyzed pragmatic functions of two genres, commercial advertisements and News talk that have been producted in North Korea. Two genres have obvious features caused by political authority of communist conutry. Advertisements have the political goal in behind than commercial goal. TV news talk that government publishes as a comment show the stereotype of the politics of demagoguery. Korean language prefer to talk frankly by straight talk, to use public speech tone, to obey the frame of written language like the beginning- the body-the closing, although oral speaking’s situation. And this paper propose the ideas of pedagogical methods and educational politics in oder to overcome the heterogeneity from two languages. South koraen language curriculum should include a lot educational contents for the understanding about North korean language. and emphasis homogeneity not heterogeneity.