外国人觊觎台湾由来已久。早在１７世纪初，荷兰东印度公司为了寻求与中国通商之根据地，就曾派兵舰进驻澎湖。１６２６年西班牙人也派舰占据基隆港。早期殖民者竞相在台湾寻求立足点，扩张殖民地，垄断海上贸易，并试图向东方传播天主教。１８５８年，清廷与英、法、美、俄签 Foreigners wander Taiwan for a long time. As early as the early 17th century, the Dutch East India Company dispatched a warship to Penghu to seek a base for trade with China. In 1626 the Spanish also sent ships to occupy Keelung. Early colonists competed to find a foothold in Taiwan to expand their colonies, monopolize maritime trade and try to spread Catholicism to the east. In 1858, the Qing court signed with Britain, France, the United States and Russia