The intersectorial action emerge nowadays, as a way of facing the needs of the population in the most integrated form which are complex, aiming at transmitting health through intervention in the chain of social determination of the health-illness process. The belief is that it is not possible to promote health if the sector works in an isolated manner. In this study the Family Health Program is emphasized through the possibility of the placement of workers in the territory and because it's a national strategy for reorientation of the support model, which implies changes in the conception of health-illness in sanitary use and paradigms. Due to this, information on the perception of the Program workers was gathered in a region of Sao Paulo, Brazil, on intersectorial work through an analysis of the discussion held in a workshop on the subject. It was discovered that, although the workers know of the influence that bad working and life conditions affect the assisted population, they don't identify intersectorialism as a strategy, they present sporadic intersectorial relationship permeated by relations of power and weak social participation. The analytical categories which emerged through theoretical reference and the empirical basis were: relations of power, empowerment and social participation. A reevaluation of de training process of these workers is suggested aiming at a gradual transformation of the relation of power in shared in authority and sensibilization of the social actors on the importance of intersectorial work.