Protective effects of 14 kinds of antioxidant on liver injury induced by carbon tetrachloride (CCl4) were investigated in terms of serum enzyme activities and bilirubin concentration. Consequently, the significant protective effects were found in sesamol, ellagic acid, cysteamine and cysteine. These antioxidants clearly decreased the lipid peroxide in the liver tissue. The protective effects on CCl4-induced liver injury in vivo were independent of the inhibitory activities on lipid peroxidation in hepatic mitochondria fraction in vitro.