Shih Der-Ching's explanatory commentary to Da-Xue is on the basis of Zen's standpoint. I doubt whether he had any real understanding of Da-Xue, because his concepts about Da-Xue's knowledge and confirmation fulled of obvious Buddhism's shades. Moreover, Chenchien-chu's ”Recognition of Da-Xue” is a new undertaking of traditional Da-Xue's commentaries. His freshness of insight and broadness of activism are between the lines. The objective of this research is to explore the two of them remarkable viewpoints toward Da-Xue's knowledge and confirmation. And on this research I want to develop they two's extraordinary opinion on Da-Xue's correlate discussions from their writings, and it maybe will render some creative results.