We reported a successful pleuro-venous shunt operation (Pl-V shunt) for a patient of liver cirrhosis with secondary hydrothorax. A 78-year-old female was admitted to our hospital because of severe dyspnea and palpitation. Chest x-ray film revealed right sided massive pleural effusion. Over several weeks the chest tube drainaged about 1,500 ml of transudative fluid per day. We performed Pl-V shunting and pleural effusion subsequently decreased in amount and dyspnea disappeared. This Pl-V shunting is thought to be useful for such a patient with massive pleural effusion which failed to respond to medical therapy.