Abstract: The antagonism of moralities is an important factor to influence world harmony.Both moral relativism and moral absolutism should be opposed to under the condition of multi-culture.Moral pluralism should be put into effect on the basis of unifying moral relativity and moral absoluteness.People from different nations,different cultures and under different social systems are advocated to be equal and tolerant with each other,to understand mutually,respect each other,and to learn from each other.Thus,world peace and harmony can be promoted.

Key words: multi-culture, morality, moral relativism, moral absolutism, moral pluralism, world harmony