This study has as objective the research, Leadership of Nursing and Practical of the Power, based on studies of stories and the scientific theoretical survey, of the relations of Being able, the philosopher and professor of the chair of History of the Systems of Thought in the Collge de France, Michael Foucault, since 1970 the 1984. Owner of great literary compositions, of which he can yourself be cited: ' ' History of the Loucura' ' (1961); ' ' The birth of clnica' ' (1963); ' ' The words and coisas' ' (1966); ' ' The Archaeology of saber' ' (1969); ' ' The order of discurso' ' (1970 - inaugural lesson of the College de France); ' ' Vigiar and Punir' ' (1977); ' ' The will to know - History of the I' sexuality; ' (1976); ' ' The use of the pleasures - History of sexuality II' ' (1984); ' ' The care of itself - History of sexuality III' ' (1984) (which could not complete due its death), that they tell modern conceptions of the theories on knowing, the power and the citizen. The research was become fullfilled in cross city of the Souls? Bahia, being used as citizens the professional nurses, operating in Hospital, Basic the professional category, Units and of Education. The relevance of this research if gave decurrent the necessity to study the Power in the nursing team, in the period where if it finds the classroom, rescuing all the historical context of its process of being able, until the current days. The scienter of the research are to present conceptions and behaviors of the professional nurse by means of situations that need the use of the power, either in the management, the administration or the interpersonal relations. ' ' In the truth, nothing it is more material, nothing is more physicist, more corporal than the exercise of the power..