中國儒、釋、道三教，發展至明末，均已相當成熟，因此三教調和、儒佛會通，甚至三教同源之思想，順勢蔚為風潮。憨山德清在這方面的表現，極為突出。本文目的在闡述憨山德清之儒佛會通思想，並予以評論。因論述之需要，亦對其《大學》《中庸》之詮釋，進行研討。憨山誦習儒業，及展開三教會通之歷程，則透過其生平予以闡明。 憨山誦習儒佛之理論與方法，不論是理論架構，或對《中庸》《大學》之詮釋，所引發之問題，皆有待釐清。本文嘗試在這些方面作較深入之評析。

　　　　　In the last years of the Ming dynasty, Confucianism, Buddhism and Taoism in China have all developed to be quite mature: therefore, the convergence of these three traditions became one of the high light of this period. Some one even mentioned that these three traditions came from the same source historically. The Zen master Han Shan Der Ching is a distinguished thinker of this movement of Convergence. This paper aims at introducing Han Shan Der Ching's thought about the convergence of Confucianism and Buddhism. and makes some comments on his work. In the mean time it also discusses his commentarial works on the Confucian Classics, such as "The Great Learning" (大學) and "The golden Mean" (中庸). Through his course of life, it is clear how he learned Confucian Classics and converged the Confucianism, Buddhism and Taoism. To discuss about Der Ching's theory and method of convergence is actually the point of emphasis in this paper.