Abstract: “Foundation”,“significance” and their unity are three angles of understanding the meaning of existence.We can define the way of existence by these angles.The way of existence is the way in which people exist on special “foundation” and realize the “meaning” of life and the value of existence in special historical period and background.The essence of the existence way is the solution of the contradiction between individual and nature,individual and society,individual and others,individual and individual self.The main ways of existence for human society are authorized existence,materialized existence and existence by ability.Each way has its feature and appearance.

Key words: existence, the way of existence, definition of philosophy