Due to origin of human agency, Allameh Tabatabaie has proposed “Monotheistic Ethics” that not only encourages attitude of limited human in this mundane world toward ethics of metaphysics but also it has considerable effects on objective realization of ethical values as well as creating motivation in ethical factor. Also due to the internal origin, in addition to analyzing human soul forces, he has proposed “rational ethics” and for him, human ethical responsibility is subjected to his entitlement of ethical comprehension. And because of the ultimate origin, it is known for him that the most important element in morality of the act is having divine motivation. Illustrating these three principles concerning human, the paper aims at analyzing and explaining Allameh Tabatabaie viewpoint regarding anthropology in ethics. Referring to opinions, the method of the study is documentary and about illustrating the content, it is analytico-descriptive.