This article looks into the evolutionary bases of the work of Pierre Marty. André Green rightly questioned him about the lack of references to the origins of his work. For Marty, evolutionism is an obvious principle of his view of psychosomatics passed down in the first place by his father, Abel Marty. After a reminder of the theories of evolution, the article reviews his evolutionary influences, whether confirmed or probable, and describes how his evolutionary thought progressed: his scholarly thesis, his growing awareness of the resistance to this principle, the description of evolutionary chains, intrauterine fixations, the expansion of the laws of the unconscious thanks to the principles of automation and programming, and his rapprochement with the scientific theoretician, Henri Atlan. In his 1990 book La psychosomatique de l’adulte, Marty points to the limitations of his discoveries concerning the “choice” of pathology and organ, remaining a subject for possible future evolutionary research.