The aim of our work is to consider the literary work from the perspective of Greimas who reflects the scientific approach of the eighties. We know that the processes of enunciation in the reconstruction of the past always appear to be the major issue of the autobiographic genre. Whatever the autobiographic genre, autobiography, memories, journal or auto fiction, the levels of enunciation are overlapped and alternated in the autobiographical discourse, for this type of discourse is presented above all as the place of experience. The instances of autobiographical discourse refer to one real person in the world but they appear through their different roles in different enunciative levels of autobiographical discourse. The novel entitled W or the childhood memories of Georges Perec presents from its title the two structures of the autobiographical genre and the fictional narration. In the novel, these are two alternating texts: one that is fictitious and the other that presents itself as a fragmentary autobiographical narration of the childhood of the author. Thus, there are two enunciations that unfold independently but are connected and complementary in order to understand the universe created. Our purpose will be to reveal the mechanisms of enunciation that manage Perec’s novel. We will insist, in both types of text, on the level of the principal utterance, the stated utterance and utterance, and the instances that appear in these three levels.