Although Hokkaido was formally incorporated into and became part of the Japanese territory during the Meiji period, it differed from other prefectures of ‘mainland' Japan in implementing many institutions laid down by the Meiji Constitution, such as the election of members of the House of Representatives. Through the question of the Takushokumush□ (Ministry of Colonial Affairs), this paper aims at investigating how Hokkaido perceived itself from its status of a 'peripheral region'.Regarding Taiwan as its competitor, the Hokkaido Agency adopted a propaganda strategy of attacking others so as to build up itself for promoting colonization in the locale. Under this circumstance, especially on the establishment of Takushokumush□, two opinions emerged in Hokkaido. Firstly, some unknown local residents called for the establishment of the 'Ministry of Colonization'. Secondly, the Chief Executive of the Hokkaido Agency, Kitagaki Kunimiti, and some other local residents (such as Tsusima Kasabur□ and others), called for the formation of the 'Governor- General's Office of Hokkaido'. Both shared the common view of enhancing the power of the administrator of Hokkaido for the development and promotion of the colonization project. Those proposing the establishment of the 'Ministry of Colonization' affirmed that a new ministry should be set up particularly for supervising Hokkaido's colonization project. Although it is not clear about Kitagaki's advocacy of the 'Governor-General's Office of Hokkaido', Tsusima Kasabur□ and others rather suggested an establishment outside the existing one s, even as a 'Governor-General's Office of Hokkaido' directly under the Emperor's commandAlthough the above-mentioned proposals seem to be advocating de- 'maninlandization', they were in fact the local residents' exposition for 'mainlandization' through enhancing the power of the administrator in Hokkaido , aiming at fulfilling the colonization goal expected by the 'mainland’.