The concept of political myth was born as theoretical concept at the beginning of the 20th century. George Sorel was the first one in it theorizing. Nevertheless, this one continues being a concept of complex boarding. Its uses are loaded with pejorative very strong connotations, in which the trend to consider it to be an abnormal phenomenon and to excluding it as heuristic category of the political thing is what prevails. This is like that, because for the political theories of racionalist root - as it it are the liberalism and the orthodox Marxism-, the concept of political myth denotes phenomena of irrationality in the area of the politics that they turn aside and / or mask the real sense of this one. From a different perspective, influenced by the Marxism, but that looks for a compression of the political myth more dialectical and near to the practice that to the pure speculation and esencialista of the politics, Georges Sorel, Antonio Gramsci and Jose Carlos Mariategui break with the negative valuation of this one. To realize an analysis of the conceptions developed in the matter by each of these authors, it is the intention of this article.