How did Taiwan become a Japanese colony? And how did it then become the territory of the Republic of China? Here, we will look at the Treaty of Shimonoseki of 1895 and the actions of the governors-general of Taiwan during the 50 years of Japanese rule. These key historical materials provide an overview of Japan’s plans for southward advancement and the profound influence this period has had on Taiwan even to the present day. Following the end of World War II, the Republic of China demanded the return of Taiwan from Japan, which it received with some difficulty, thus establishing Taiwan’s position in international law.(臺灣是如何成為日本的殖民地?又如何轉成為中華民國的領土?本圖錄將介紹臺灣成為日本殖民地的前因及歷程，我們可看到馬關條約的內文、1895~1945臺灣大事，以及從總督府轉成總統府的過程。而二次大戰後，中華民國要求戰敗國日本歸還臺灣，這中間的折衝與過程雖然複雜，但在國際法上則確立了臺灣的定位，中日和約將忠實呈現。 )