休谟的道德学在其思辨人学中具有特殊的位置，在西方近代哲学发展史上也占有重要的地位。本文通过对休谟道德学在其哲学中的位置给予恰当定位和对其道德学的两部主要著作《人性论》中“论道德”部分和《道德原则研究》进行比较研究，从理论上梳理了两书的思想理路，说明了两书在任务、问题、方法、结构和论述上的差异，揭示了《道德原则研究》在几个方面对“论道德”的重要发展 Hume’s ethics has a special position in his speculative anthropology and also occupies an important position in the history of the development of modern Western philosophy. In this paper, Hume morals in the philosophy of its position to give proper positioning and its two major works of ethics, “theory of human nature” in the “moral” part of the “moral principles of research” to conduct a comparative study, combing the theoretical two The book’s ideological approach shows the difference between the two books in terms of tasks, problems, methods, structures and discourses, and reveals the important development of “morality” in several aspects of “the study of moral principle”