This study aimed to develop an approach about the power of humane care within the concept of nursing through the building of a theoretical structure. Spiegelberg's methodology was used to seek the meaning of the power of humane care for new nurses and for patients. The resulting theoretical structure is based on Parker's theory of power, Patterson and Zderad's humane care, Watson's theories and LarraÒaga's concept of love. The elements of this structure are: the nurse, the ill or healthy person, the environment and nursing, all bound by an affectionate humane care. The final reflection was that all of them are included within the technical-scientific paradigm of modernity and that the patients hope to be care for by humane nurses.