The aims of this article are to reveal the types of murye appearing in Korean speech act(especially in the situational and relational conditions of Korean novels and essays), to compare the types of murye and impoliteness strategies(cf. Brown and Levinson 1987, Culpeper 1996, 2003 and Bousfield 2008) and to help the leaners of Korean language maintain social relationships and lead successful communication. In Korea society, murye is provided the words and behaviors which are against socially adopted norms-authorization(permissions) of relations, needs, competence, space and accord between words and actions. Impoliteness analogizes with murye but with the different social norms and relational works, it puts basic wants before the social norms and has something to do with the intention of speaker. Therefore as difference, there are not discordance between one`s words and actions, refusal of fellowship, self-praise in impoliteness strategies and as in common of murye and impoliteness, there are non-consideration for others` needs and invasion of others` region. (Hankuk University of Foregin Studies)