A study was undertaken to elucidate the clinical dietetic performance level and to identify the difference between the actual role performance and perception of important level of the clinical dietitian. The survey was carried out for the 21 general hospital over 100 beds in Seoul, Pusan and Daegu area. The results of the study can be summarized as follows. 1. One dietitian was responsible for the feeding and clinical dietetic activity of 166 in-patients on the average. 2. In the actual role performance of clinical dietetic practices, of the 26 items listed, only 3 were always or almost or almost performed by 75% of the dietitians, 4 additional items were always or almost performed by 60% of them. 3. In the perception of importance level of clinical dietetic practices, more than 75% of the dietitians indicated that 23 of the 26 tasks were important practices. 4. The performance average score of nutrition assessment was 15.85, of nutrition care plan development was 19.72, of patient counseling was 12.22, of research activity was 19.62, and of education was 21.27 in the dietetic department was a division for the clinical dietetic activity, while 10.96, 15.24, 9.54, 15.97, 18.50 respectively in the dietetic department has not a division for it.