The present invention relates to a composition containing a fraction of a Mouton Radicis Cortex extract, which can be advantageously used in the prevention or treatment of liver diseases. In the present invention, it was specifically verified that the use of the composition can effectively reduce the blood ALT concentration, inhibit the increase of TLR4 or IL-1β protein expression in the liver, and also inhibit the lipid peroxidation in the liver, and thus, it is expected that the composition can attain target therapy through a more fundamental approach in the prevention or treatment of liver diseases.
