Infertility of the pig is directly affects on economic loss and failure of the embryo transfer. In the present case report, we show one rare case of porcine infertility resulted from oviductal obstruction. A gilt showing normal heat behaviors was selected as a recipient of embryo transfer. During the laparotomy surgery, abnormality of the reproductive tract was founded. Several large sized cyst-like structures were founded on infundibulum and body of uterus. Severe enlargement of oviduct represents that obstruction of the oviduct. Sign of fibrosis on the surface of uterus and other internal organs revealed that the obstruction was come arise from prior peritonitis. Mild neutropenia and elevated number of monocytes, eosinophils and platelets in blood smear represent that the peritonitis might be due to chronic parasitic infection. Ovarian function was seems to be normal due to blood progesterone concentration was higher than basal level. The pig was culled because she cannot be recovered by surgical or hormonal treatment.