This thesis focus on the territory of an epic art in the philosophy of Walter Benjamin and in the theater of Bertolt Brecht. The epic is seen here in the context of politicization of twentieth-century art, which would achieve one of its most significant and experimental expressions in the Brecht theater. Benjamin will figure not only as an important reader of Brecht, but as a thinker of the epic. His readings of the 1930s on political art and on the narrator will have an important role. The narrator will be thought of as a narrator of political situations, and in connection with a theater which, as Brecht pointed out, acquires new possibilities to narrate. We will also deal with the conceptions of an epic theater, or proletarian, of the director Erwin Piscator, and the readings of the writer and critic Alfred Doblin on an epic work.