Cava-atrial shunt was performed in the Treatment of Budd-Chiari syndrome in two cases, in which one belonged to type Ⅲ， and the oother type Ⅱ,the recent results were satidgactory. A rare cause of Budd-Chiari syndrome in one case is that some drugs for occluding the spermiduct was inadveretntly injected into the spermatic vein and inferior vana cava.