Verbs could be classified as main verbs and auxiliary verbs in Korean. Main verbs have actual meanings and could be used independently in a sentence. Auxiliary verbs cannot be used independently, and have to attach to predicates. They function as supportive components, and express a speaker or a subject’s psychological activities and minute differences. There are quite a few auxiliary verbs in Korean, widely used in various expressions. If Chinese students want to have a better command of Korean and a smooth communication with Koreans, it is necessary for them to gain a good understanding of Korean auxiliary verbs. However, it is not the case in reality. The author often tries to avoid using auxiliary verbs even after years of experiences in studying Korean. Therefore, the author aims to investigate whether Chinese students truly understand the meaning of auxiliary verbs and correctly use them. The author collected writing artifacts in Korean from Chinese students who study in Korea and also in China, and explored the frequency of auxiliary verb use. Then the author compared the results with the frequency from Korean native speakers in order to learn to what extent Chinese students master the Korean auxiliary verbs. (The University of Suwon · Qingdao Agricultural University)