This article is concerned with whether or not that there is moral knowledge and moral epistemology. Moral epistemology is the study of whether and how we know right from wrong. In addition that moral epistemology is concerned with moral knowledge, normativity of moral rules are crucial problem. Hence, moral rules are normative in that they provide standards for evaluating specific and particular behaviors. At this point, we may say that there are two views. The former claims that there is not moral knowledge and moral epistemology. In this case, ethical rules and values are not normative. The latter, on the other hand, defends objectivity of moral rules; for this moral knowledge puts normative standards for human actions. Mainly moral knowledge puts normative standards for human actions. The purpose of this study is to suggest epistemologically possibility and normativity of moral knowledge.
Keywords: Ethics, Moral Epistemology, Moral Knowledge, Normativity