Fichte's philosophy has understood the interpretation of the world by its changing. In this philosophy, theoretical reflection without considering of the change of the world will be meaningless. The most important philosophical achievement of the world according to Fichte, that is Kant's philosophy, despite providing tools for changing the world, does not use it in this direction. Fichte's mission is to establish a connection between Kant's philosophy and the outside world. In this way, Fichte rejects or alters all the dichotomies and theories that prevented the establishment of this similarity in Kant's philosophy, and opens the way for theory of theory-action and subject-object. And we show how Fichte, by this way, has transformed the meaning of freedom, reality and idealism. In this article, the authors carefully examined all of Fichte's achievements along the way, and then criticized Fichte's method and strategy, showing how he fallen into the trap of obstacles that he had previously recognized in Kant.