Abstract Aims of this study: to developing nursing care standards among adult patients with uncontrolled essential hypertension through the following1- identify the needs of hypertensive patients2- develop nursing care standards for adult patients with uncontrolled essential hypertension according to their needs 3- assess nurses' knowledge about uncontrolled essential hypertension. Subjects and methods: Descriptive exploratory study was utilized .The study was carried out at internal medicine department at Assiut University Hospital. The study sample was composed of (53) nurses and (60) adult patients with uncontrolled essential hypertension. Tools: four tools were utilized for data collection Questionnaire sheet for nurse's knowledge regarding nursing care for patients with uncontrolled essential hypertension , Basic nurses competencies opinionnaire tool, Nurses practice observation checklist, patient's needs assessment tool. Results: showed that; More than three quarters of nurses (75.5%) had poor knowledge about nursing care for patients with uncontrolled essential hypertension. Conclusion: Formulation of standards is the first step toward evaluating nursing care delivery. Recommendation: In-service training program for nurses is important in internal medicine department. Application of the nursing care standards for patients with uncontrolled essential hypertension.