This Study was devised to ovserve the effects on the lipid metabolism and gained body weight of Albino rats by feeding of diet supplemented with 2% to 8% Ginseng root powder. The Albino rats (50 heads), weighing 94 to 104g, were divided into five diet groups, which were 1) stock diet as control, 2) 2% Ginseng diet (stock diet contained 2% Ginseng powder), 3) 4% Ginseng diet, 4) 6% Ginseng diet and 5) 8% Ginseng diet. The each group was maintained with corresponding diet for 30 days and then sacrificed. The growth rate of rats, the consumption and efficiency ratios of food and protein were determined during the feeding term, and after sacrifice of the animals, the contents of lipid and cholesterol in some organs and serum were analyzed. The results obtained are summarized as follows, 1. The growth rate was highest in the control group and decreased to order of increasing content of Ginseng powder in diet. 2. The consumptions and the efficiency ratios of food and protein were significantly decreased diet groups containing more 6% Ginseng powder than the control group. 3. Lipid contents in liver and heart were decreased by feeding of diet supplemented with 2% to 8% Ginseng powder compared to the control group. 4. The total cholesterol contents in the liver and heart were decreased by feeding of diet supplemented with 2% to 8% Ginseng powder as well as changing of the lipid contents. As the results of above, the lipid metabolism in the rat was influenced by feeding of the diet supplemented with Ginseng powder.