A Study on the use of Onomatopoeia in Japanese-language education - Based on comparing Japanese-language examinations - In this study, use of onomatopoeia was examined through the Japanese textbook in middle and high schools as well as Japanese teaching materials in universities in order to investigate the onomatopoeia in Japanese-language education. And this thesis presents the results over the difference of onomatopoeia between textbook in school education and Japanese language exam such as JLPTㆍEJU and JPT. According to the results, it was found that onomatopoeia is rarely used in school education and is partially suggested in the form, usage and meaning. Most are used as Modifying usage so it is not easily recognized as onomatopoeia since it is strongly recognized as the adverb. On the other hand, the use of onomatopoeia in examinations comparing to school education has largely increased and it has been variously used in many ways. We can find that teaching of onomatopoeia to learners who prepare Japanese language examinations is not sufficient in school education. Onomatopoeia is a vocabulary which has a consistent pattern in terms of its morph and meaning and it can help the learners ease the burden of increase of onomatopoeia vocabulary during the middle and advanced levels by the introduction of onomatopoeia from the beginning level. It is therefore necessary to make the learners aware of onomatopoeia in the beginning levels and to educate the learners systematically to understand the onomatopoeia by themselves.