This study examined the linguistic backgrounds and dialectal characteristics of Changnyeong and Dalseong regions, which are located in the transitional area between Gyeongsangnam-do and Gyeongsangbuk-do. It was confirmed that the language of each region was not severed but share many commonness based on various characteristics found in the transitional area existing discussions and field surveys, As a result, 19 (18) consonants were realized by elderly people and 19 by young people in Changnyeong and Dalseong regions. In the case of vowels, six by elderly people and Seven vowels by young people. Also, it was investigated that language variations, such as Word-initial Glottalization, palatalization, and umlaut, were more active in the Changnyeong region than Dalseong region. The difference between these three variations can be attributed to the perceptions and attitudes of older speakers.