Lee, Jae Ho. 2016. “The Use of Korean Sentence-Final Endings by the Students of Chosun Hakkyo, Korean School in Japan”. The Sociolinguistic Journal of Korea 24(3). 317~343. The purpose of this paper is to present the findings which were found throughout a series of investigations performed to clarify what kind of Korean sentence-final endings the students of Korean School in Japan who are the descents of Korean immigrants use. Since the observed endings of the 1st investigation, Participant Observation, were different from the results of the 2nd investigation, Speech Task, the author interviewed the students to verify the results of the 2 investigations. Consequently, the results of Participant Observation and the interviews were generally consistent. There is, however, the possibility of students choosing and using different endings in different situations, affected by factors such as education in school and so on. The results show that the use of Korean sentence-final endings by the students is not simple.