The Fundamental Nursing with basis in the concepts and implications toward this term and to the more general and more simples knowledge of nursing is defined. These knowledge are related to the categories assumed by the enterety nursing (medical surgical nursing, maternal-child nursing, public-health nursing, and others) in relation to the concept gived. The subject of area rule are pointed. Some topics are critically analized. The frame for the Fundamental Nursing teaching and research are defined. The authors present some conclusions and made recommendations about to the subject and specifics studies to the Nursing School