In this paper, we reflect on the possibility of iniciating a Fundamental Psychopathology for the Infancy, based on the axes that are proposed by Costa Pereira and Berlinck for the constitution of a new discipline, the Fundamental Psychopathology. We analyse the history of the Infantile Psychopathology, the question about who demands a child analysis, and the need, in an interdisciplinary work, of the prevalence of a discipline over the other.