This study aims to classify various categories of Korean exclamations in Korean language. The previous and existing studies have divided exclamations into categories such as ``emotional exclamation``, ``willful exclamation`` and ``expression of hesitation``. Such classification has a drawback of not being able to explain the meaning of individual exclamations properly; thus this study attempts to undertake the project of categorizing them based on the realization aspect of exclamations present in corpus. First of all, the drawbacks in the previous studies are analyzed. In those studies, the exclamations had a characteristic in the category of ``being used independently in a sentence`` rather than as ``words expressing the emotion or willpower of the speaker``. However, through the analysis of corpus, it was verified that there are many more emotional exclamations than willful and formal exclamations in terms of category and frequency. Therefore, it is ascertained that even if exclamations have a strong characteristic as independent part of speech, they are used as exclamations with reasons. Also, the previous studies were carried out centering on the issue of whether or not the exclamations presume the listeners, but such viewpoint is resulted from researches through references present in written corpus for the study of exclamations. Actually, exclamations are used in colloquial sentences where a listener exists. Therefore, it is not correct to classify the exclamations according to the issue of whether or not there is a listener. In order to arrange the categories of exclamations, all kinds of exclamations in the dictionary were studied. And the classification is carried out with the criteria such as expression, impartment, action induction, action and other intentions based on the interpretation of the meaning of the word. Also, the general usage and fixed function of meaning in certain situations are separated to be examined independently.