After Fils (1977) Doubrovsky continued his autofictional adventure with a production always rooted in "fiction, events and strictly real facts". S’autofictionnaliser à la manière de la madeleine à l’envers dans Un amour de soi de Serge Doubrovsky 145 This study attempts to discover the autofictional techniques used in his novel Un amour de soi. In a thematic perspective, our exploration of the Doubrovskian work is based on two axes, the first will shed light on the events of the couple Rachel / Serge, a relationship that will reveal various information about the author and his relationship with oneself -even with the other, then we will examine how does the autofictional ego convene and exploit the other in order to get a self fragmentary representation. The second will be the rewriting of Un amour de Swann of Proust, a process that will allow us to capture the specificity of Doubrovskian writing which is inspired from a revered model that could even push him away. Our interest is mainly about how does the process of "madeleine upside down" take action within Un amour de soi.