These works were designed to examine the effects of dietary fiber sources and levels on lipid metabolism in rats fed high lard diet. Rats were divided into three($alpha$-cellulose, polydextrose, carrageenan) groups and were fed with containing 6% fiber diet. Serum, liver and fecal lipid contents were examined after four weeks of dieting. Also, in order to investigate whether hypocholesterolemic effect of dietary fiber at 4 weeks is continued at 8 weeks, rats were fed with diets containing same sources with different levels of each dietary fiber and were sacrificed after eight weeks of dieting. Serum cholesterol in rats fed carrageenan diet and polydextrose diet were reduced compared with $alpha$-cellulose-fed group at both four and eight weeks dieting. Liver cholesterol in both polydextrose-fed and carrageenan-fed group were lower than $alpha$-cellulose-fed group. Fecal total group were increased compared with $alpha$-cellulose-fed group. On the other hand, there was no significant difference between polydextrose-fed and carrageenan-fed group. On the basis of the results, it was suggested that the hypocholesterolemic effect of soluble fiber used in this study (polydextrose, carageenan) on rats was due to the inhibition of cholesterol absorption on the intestinal lumen and acceleration of cholesterol catabolism in the liver and enhancement of bile acids excretion. On the other hand, insoluble fiber($alpha$-cellulose) showed no hypo-cholesterolemic effect.