They made Taiwan a "Prefecture" with three separate counties. At the time, there were about 300,000 Han Chinese in Taiwan. On the one hand, the Ching authorities were generous toward the Cheng family, in order to win the loyalty of the local populace. On the other, they dispatched 10,000 troops to prevent uprisings.
一六八四年，清室採施琅意見，決定好好治理台灣，在台灣設置一府三縣，隸屬福建省，當時，台灣僅有居民三十萬人左右，清朝一方面採懷柔政策，對鄭家後人相當禮遇，以收攬台灣民心，另一方面也派了一萬水師來台設防，以防民變。