This study was devised to observe the nutritional effect by feeding of rice diet supplemented with Ginseng powder in Albino rats. The male albino rats (84 heads), weghing about 56g, were used for the experimental animals. They were divided into six diet groups; which were the 6.4% protein diet, the 12.8% protein diet and the 17.9% protein diet as the control and each control diet was supplemented with 3% of Korean Ginseng powder as experimental diet. These diet groups were again divided into 2 groups according to the feeding terms, 3 weeks and 6 weeks. The animals were sacrificed after feeding the coresponding diet for 3 weeks and 6 weeks and the liver, heart, kidney, intestine and serum were collected as samples for analysis. The growth rate, efficiencies of protein and food, lipid, cholesterol and nitrogen in the samples were determined. The results obtained are summerized as follows; 1. The growth rate were improved by feeding of the 13% and the 18% protein diet supplemented with 3% ginseng powder than the coresponding control diet group, although the same results were not observed in the 6.8% protein diet groups. 2. The consumptions of the food and the protein in each dietary group were similar to each other. 3. The efficiencies of the food and the protein were improved by feeding of the 13% and the 18% protein diet supplemented with the ginseng powder than each control diet group. 4. The lipid contents in the liver of each expperimental diet group, in the feeding for 3 weeks, were shown the tendency to increase slightly, compared with the coresponding control group, whereas in the feeding group for 6 weeks, the contents were shown rater the decreasing tendency. 5. The total cholesterol contents in the liver of each experimental diet group, in the feeding group for 3 weeks, were maintained slightly higher level than the coresponding control group, whereas in the feeding group for 6 weeks, the contents were shown similar levels. 6. The total cholesterol contents in the heart were maintained with similar level in each diet group and each feeding term.