Fasciola sp, a king of the liver fluke (Trematodes), is a common parasite of sheep and cattle carrying the disease known as liver rot. Its distribution is world-wide although of the rarity and the different frequency of human infestation by area: more prevalent in Europe and Latin America than in Asia. In Korea, there are some evidencs of the infestation in cattle. And there have been a few reports of human infestation so far. The authours experienced a typical case of acute fascioliasis. The patient was 54-year-old house- wife who didnit have any history of th exposure to metacercaria but had a large subcapsular hemorrhage and multiple collections of parenchymal hemorrhage in right lobe that were consisted of massive eosinophilia (81%). We could never detect eggs in stool but got strong positive result in serologic test for parasite-specific IgG antibody by micro-ELISA (0.81:positive>0.25).