“Quan Yun Yu Pian”is a traditional dictionary which was compiled in the late 18th century in South Korea. It reflects the Chinese characters are how to be used and developed in South Korea. On one hand,“Quan Yun Yu Pian”is deeply affected in compiling style and explanation on the contents by“Yu Pian”and“Kang Xi Dictionary”. On the other hand, it has also a distinct individual characteristics. Our studies are based on the text and we hope to reveal the rules how the Chinese characters are changed and developed through the collation, analysis and research of the same characters.