Abstract
This research aimed at examining how language and murep identity: a case in barito community, evaluating the language and identity term in Murep community and examining the application of theory of language Rovira, Lourdes C (2008), theory of identity by using Simon (2004). In order to get the data, this research used participant observation and data recording. As the conclusion of this research, it was found that, the use of Bahasa Kebalik in Murep identity had found four pattern of word-formation from the reverse language used by the Murep community. There were, words which have different letters at the beginning and at the end in are fully reversed, words which have same letters at the beginning and at the end will be reversed without the end letter, affixes which are not reversed, and the words which have same vocal letters at the beginning and at the end.