Abstract
Debate about moral relativism and moral absolutism is one of the most important and old subjects of philosophic deliberations in ethics; but the result of this discussion is not limited to ethics. The position a person takes on relativism or non-relativism of main values and criteria, affects his viewpoint, stance, social and legal position. In this article after articulating the related concepts, we revise each kind of moral relativism; and finally, we come up with the main reasons given for each one and evaluate them.