在日本殖民台湾的近五十年间，“国语同化”政策始终是日方奴化台湾人民、消除中华文化认同的核心手段。“国语同化”政策的形成与日本近代民族国家的建构密切相关，被伊泽修二移植到台湾后，它逐渐成为殖民教育的重心，并在皇民化运动中走向极端。台湾民众在开展反“国语同化”的民族运动时，也选择性地吸收了“国语”中的近代文明因素。“国语同化”政策最终走向失败，却仍为台湾社会带去了不可磨灭的影响。

In the nearly 50 years of Japanese colonization of Taiwan, the "national language assimilation" policy has always been the core means to enslave the people of Taiwan and eliminate their cultural identity with China. The formation of the policy is closely related to the construction of Japan's nation-state. Having been transplanted to Taiwan by Isawa Shuji, it gradually became the focus of colonial education and went to extremes in Kominka Movement. While launching the anti- assimilation movement, the people of Taiwan selectively absorbed the modern civilization factors in the "national language". Although the policy failed, it brought a deep influence to the Taiwan society.