This paper rethinks the issue of vowel harmony in Korean sound-symbolic words, using more refined data, which is extracted from a large size of corpus, SJ-RIKS (Kang and Kim, 2009). The data of this paper contains 1,023 reduplicative sound-symbolic words of which the base is composed of two or three syllables. It is distinct from that of previous studies in that the sound-symbolic words are all listed in Pyo-jun-gug-eo-dai-sa-jeon (Grand Dictionary of Standard Korean, The National Institute of the Korean Language). By and large, the result of the analysis in this paper supports the proposals of previous studies. However, it is shown that the partial neutrality of [a] is not found in the data of this paper. Thus, Larsen and Heinz (2012)’s proposal of the [a]’s partial neutrality is not supported by the result of this paper. In addition, this paper discusses the additional issues of vowel harmony in Korean sound-symbolic words, such as the transparency issue of medial vowels, the difference in vowel harmony between cross-modal sound-symbolic words and onomatopoeic ones, and the issue of use frequency effect on vowel harmony. (Chung-Ang University · University of British Columbia)