This essay brings to discussion the links between Psychology and the Family Health Care Strategy (ESF). The text begins with a historical view of the transformations occurred in the health field leading to the National Public Health (SUS) and the participation of other professionals in the Public Health field. Special outstanding is given to Psychology, specially health social psychology which proposes an intervention more social, interactive, collective and local contexts. The ESF, a public policy that was established to promote the reorganization of the Health System and the consolidation of the SUS, emphasizes the relationship between health professionals / patients and the production of links, the creation of compromise and co-responsibility among them. Finally, the effort is to articulate the knowledges and practices of each field, pointing to the usefullness of this combination to health care work, and also, to the reorganization of assistance model.