For fear that Zheng Chenggong's pro-Ming settlers and their descendants would grow stronger, and also because the government hoped to ensure the supply of rice, limits were placed on migration to Taiwan during the reigns of Kangxi and Yongzheng in the early Qing dynasty.
清初因為擔心明鄭遺族坐大，又希望確保米糧供給，康、雍時期皆限制移民人口數量。