This study was conducted to investigate the effects of dietary fibers (cellulose ; polydextrose ; pectin ; ricebran) supplementation on the kidney fucntion of hyperlipidemic-induced rats on a high cholesterol diet (5% cholesterol). Serum lipid concentrations were not influenced by dietary fiber sources, but the pectin group was effective in reducing serum lipid levels. Total serum protein and albumin concentrations tended to higher in the polydextrose group, and serum creatinine and urea-N concentrations were higher in the pectin group than those in the other groups. Even though total urinary protein was high in the pectin group, GFR was reduced (18~30% decrease) as compared to other groups. The urea-N level was elevated in the polydextrose group as compared to that of cellulose group(25% increase). Total lipid, triglyceride and cholesterol concentrations in the liver of pectin group were lower than those of other groups. Total lipid and cholesterol concentrations in the kidneys were reduced in pectin and ricebran groups, respectively. The total cholesterol concentration infecal was significantly high in the polydextrose and pectin groups(p<0.05), and the triglyceride was highest in the pectin group. These results indicate no significant effects of dietary fiber supplementation on the kidney function of hyperlipidemic-induced rats on a high cholesterol diet, but pectin was very effective to improve lipid metabolism and to reduce GFR.