Throughout the development of Japanese culture, for both language and literature, has been influenced by Chinese culture and Confusianism. After the first Sino-Japanese War, with the signing of the Treaty of Shimonoseki, Taiwan was ceded by the Qing Dynasty to Japan. The first minister of educational affairs, Izawa Shuji suggests according to the doctrine of Confucius and Mencius and esteeming Four Books and Fives Classics as the principle of cultivating the Taiwanese. The objective for this research is to discuss the way Izawa utilize Confusianism as an tool of cultivation in the process of his education policy in Taiwan and the concealed meaning behind. Originally, Izawa planned to use Katakana instead of “Kanbun”(Chinese writing) in his educational policy, due to the existance of Taiwaneses’ deep-rooted Confusianism tradition, Izawa turned to be active to using Chinese writing as an auxiliary of his national language education policy. As a reason, he claimed the similarity of both Taiwanese and Japanese language. Secondly, Izawa imported “The Imperial Rescript on Education” in Chinese to Taiwanese people through the similarity of Confusianism between Taiwan and Japan, in order to demonstrate that Japanese emperor is also a respecter of the morality of Confusianism. Therefore, the Taiwanese people could accept the domination of Japanese emperor and “Kokutairon”(theory of state). On the other hand, Izawa has made concept of public education system, which combined the curriculum of traditional Chinese education and Japanese modern education system. So as an evidence that Izawa has an intention to achieve his “principle of unification”, in which unifying Taiwanese and Japanese into one nation unconsciously. In order to popularize the public education to each region of Taiwan, Izawa also claimed the improvement of traditional education by adding Japanese textbooks. In conclusion, Izawa’s utilizing of Confusianism has revealed his passion of making Taiwan into part of Japanese’s states and making Taiwanese people subject of the Japanese emperor, and the central ideology is inherited from “Isshidoujin”(impartiality among all), as the concept of domination of the Japanese emperor.