Purpose: The purpose of this study was to develop and test the validity of the standardized Korean nomenclature of 260 Nursing Outcomes Classification(NOC) developed by Johnson and Mass at University of Iowa in 2000. Method: The four phases of the study were: (1) translation of the NOC into Korean by the Research Team, (2) nine nursing professors and nurses with various clinical backgrounds reviewed each nomenclature taking into consideration of definitions and outcome indicators. The modified Delphi method was used to determine the most appropriate nomenclature for each term, (3) 307 Clinical expert nurses more than three years field experiences were given a questionnaire to rate each Korean nomenclature using a 5 point Likert scale ranging from very inappropriate to very appropriate, and (4) final accordance of Korean Nomenclature. Result: The team determined that 260 Korean nomenclature was appropriately named. because the mean validity score of 260 outcomes was 3.90 and each of 260 Korean nomenclature had a score more than 3.00. Conclusion: Korean nomenclature of NOC can be used as a standardized language of nursing result in a computerized nursing information system.