The purpose of this study was to identify the factors which influence the effectiveness of nursing organization in the hospital. The data were collected by employing Delphi technique in a series of three rounds from June 15, 1985 to January 31, 1986. In each round the responses to questionnaires were analyzed and the results were communicated back to the subjects. Finally consensed among subjects in identification of the 45 items which influence the effectiveness of nursing organization in the hospital. The 48 items were reduced to 6 factors and named; planning, organization and problem-solving, staffing and staff developing, supporting, evaluating-controlling and leading, and the number of items included for each factor were 14,14,8,5,3,2 and respectively. Among the 48 items, 2 items were not loaded on forementioned 6 factors because factor loading was below 0.3.