This article intends to propose a debate about the Mental Health Field, its structure in Brazil as well as its concepts and proposals. From data gathered in theses, master degree dissertations, periodical articles, official and association reports which were analyzed for the author’s doctoral thesis, the articulation of the production of knowledge, thinking and movement in the interior of the Mental Health Field is debated, and its implications in the education of the psychologist, with special emphasis to interdisciplinarity. It also brings into discussion the concept of mental health and illness. The theoretical background is supported by Pierre Bourdieu’s Field Theory, and by Michael Foucalt’s methodology of Archaeology of knowledge.