In 1721, Zhu Yigui of Luohanmen (modern-day Neimen Township in Kaohsiung County), a duck farmer known as "King Duck," raised an insurrection to protest government corruption. This event earned the Hengchun Peninsula a reputation as a hideout for rebels and bandits.
1721 年，住在羅漢門（今高雄縣內門鄉）養鴨為業、人稱「鴨母王」的朱一貴，不滿官吏腐化，舉兵抗清，引發大規模民變，史稱「朱一貴事件」，該事件使得恆春半島進一步淪為「極邊藏奸」、盜賊出沒之處。