The main objective of this work is to present a revaluation of the dialectical thinking as an input to the development of the politic philosophy. This revaluation is necessary due to the oblivion and concealment that poststructuralist currents, leaded for Althusser and Badiou have made since XX mid-century. At the same time, this concealment of the dialectic has been taken for numerous authors of the post-modernism philosophy current, wich has had great influence in literary circles of Europe, USA and Latin America. The rejection of the post-modernism to the dialectical thinking has not stopped at teorical elaborations of notionlists like Derrida or Deleuze, but has influenced marxist notionlists that have realized, in the last years, the most controversial inputs, such as Antonio Negri with Michael Hardt in the book Imperio. Following the same political thinking used by the authors of Imperio, but not influenced by the post-moderm thinking, but from the philosophy current named "occidental marxsism" (from Lukucs to the Frankfort school) here we present this revaluation. This current of thinking is away from the interpretation of the marxsism as a mechanistic materialism that practically moves it away from a critical thinking, but recovers the vinculation of the Marx thought with the philosophy. That reason makes us lead this work to the relation between the Marx thought and the Hegelian dialectical. Also, we are going to discuss that suposed negation that Marx made to valorate any aspect of Hegel as the postmodern currents present it, making Marx a notionlist of the "suspect", but moving him away from any political philosophy. Focusing in the Marx-Hegel relation, the return to the dialectical will result as the coherence between the core of the political thinking of Marx with his politic philosophy.