The objective of this article is to introduce and check how the research has been performed so far on the area of Chinese classics in Twekye science as well as to search the supplementation and development direction in the large frame of Twekye science and Korean Confucianism. This article investigated 25 dissertations, the trend of which is as follows. In the 1980s, the situation of initial study on the research on the Chinese classics of Twekye was the arrangement of materials on the interpretation of Confucian classics in 『Twekye Anthology』, the investigation of Twekye's recognition of Confucian classics, analysis of the system of commentary left by Twekye and Twekye sect, the commencement of literary research or the attempt of research in diverse directions such as approach in Korean language (in other words, research by individual interest of researchers. In the 1990s', the research based on 『Commentary of Confucian Classics』 emerged in the front of the Chinese classics of Twekye owing to expansion of base of researchers of Chinese classics, satisfaction of searching new direction of Twekye science. Entering the 2000s', individual 『Commentary』 was researched closely, because research made until that time was further expanded and intensified. As understanding on 『Ancient Confucian Scripture』 was newly added, the outer circumference of Chinese classics of Twekye sect was expanded and the research of Chinese classics by Twekye sect was further developed. Furthermore, they tried again to actively answer the question on how Sung Confucianism and Chinese classics were combined in overall system of Twekye science. This effort again emerged as emphasis of comment on the interpretation of Confucian classics in 『Twekye Compendium』. Namely, it can be said that the Chinese classics of Twekye developed considerably in 30 years or so. Then, the important issue in the future task is the arrangement of maerials related to Chinese classics in the 『Twekye Anthololy』 .