Considered one of the areas of bigger empregability for the social assistant, the health throughout the years has reserved a space of innumerable academic productions in the area. These productions had brought for the quarrel of the Social Service in the health the activities developed for the professionals, the work, the multidisciplinarity and the completeness of the actions that, daily, can promote to the user of the service of health the possibility of access to other social rights. The area of the health in Brazil passed for landmarks of social movements, as of the Sanitary Reformation and the construction of the Only System of Health that today became one of the biggest examples of the conception and concretion of system of public health. A system that guarantees the universal access and receives the users under the perspective of an extended concept of health that understands the welfare physicist, psychological and social and establish connection the health of subject to they establish conditions as the work, education, assistance, basic sanitation and leisure, that is, other social rights and benefits that complement the integral attendance to the user. But this SUS and all its proposal of care in health also directly was reached by the consequences of politics of neoliberal cut and suffered with the transformations that had taken to the trashing of the equipment and services, as well as of the force of operating work in the units of health, amongst them the social assistant. The quarrel proposal in this research has as objective to approach, through a critical and constructive analysis of the politics of health and the proper space of the institution of the health, the work developed for social assistants of a unit of public health of a university hospital of Rio de Janeiro, Brazil, inside of the multiprofessional team.