The present invention relates to lactic acid fermented Galgeuntang, and a composition comprising the said lactic acid bacteria fermented Galgeuntang or Galgeuntang as an active ingredient, more particularly, to lactic acid fermented Galgeuntang prepared by the steps of inoculating lactic acid bacteria to Galgeuntang, culturing thereof, and fermenting thereof, and a composition for preventing or treating liver toxicity comprising the said fermented Galgeuntang or Galgeuntang. The composition of the present invention has treatment effect on liver toxicity, so that it can be effectively used as a liver function recovering agent or health food for liver function recovery.
