The Theory of Yellow Peril is one of the key utterances through which Westerners posed a warn-ing to identical races and provoke and calumniate Japan and China. Just in time there was a rise of national-ism in Japan and China, and as a result, the two ran into sheer conflicts. Japan's extreme nationalism not only brought about enormous disasters to world people, but also made itself suffer significant setback s; while Chinese nationalism is able to keep tits reasonable thinking to a certain extent, and became precious national wisdom as a result.