The purpose of this study is to examine the discourse function of Korean grammar items in an inductive way. Through this inductive approach, this study tries to summarize the discourse functions that are being handled at high frequency in the actual education field and cluster them. In this way, it is possible to understand what kind of discourse function is being actively used in Korean. The grammatical items in this paper are mainly subject to teaching in Korean educational grammar. This study refers to the Korean textbooks and the Korean grammar dictionary for education as materials to select them. Each grammatical item can have multiple meanings, which can be derived from the grammatical basic meaning, and these grammatical meanings make it possible to acquire distinctive functions in a specific discourse context. First, this study classifies the type of discourse function based on inductive analysis of individual grammatical items for Korean corpus. The grammatical items are 54 particles, 98 connective expressions, 189 final ending expressions, and 8 pre-final endings. Second, this study analyzes whether the discourse function of grammatical items in each category has different grammatical features. Third, this study classifies the grammatical items by discourse function and identifies specific grammatical items belonging to each group.(Yonsei University)