On this article, temporality is understood as a psychological process which children with HIV build in a autopoietic way, with the contribution of three systems: the biological system, the psychic system and the social system. The epistemological bases of the systemic theory developed by Luhmann are taken, in the way it assumes that children with HIV are formed with those autopoietical systems and each one of them, in a structural mating, contributes to the building of his/her temporality model.