Game theory is sufficient to be one of the representative theories of most subjects in the 20th century. It has been widely applied in a lot subjects. This topic is trying to reveal its real meaning and lot of imitations from the hypotheses and methodologies of this theory. Moreover, based on the ”Reason” of the rationale Game theory, we are going to uncover some misunderstandings of this ”Reason” since the period of enlightenment. We may identify the true perceptive of ”Reason” from the understanding of the Game theory.