To evaluate the mini traumatic endovascular therapy for Budd Chiary syndrome (BCS). BCS was divided into three types on the basis of angiography. Among them, types Ⅰ and Ⅱ can be sequentially clarified into six sub types. 56 cases accepted endovascular therapy. Types Ⅰa, Ⅰb, Ⅱa, and Ⅱb accepted PTA and stenting. Types Ⅰc and Ⅱc accepted PTA plus stenting and spleen pulmonary shunting. Stents were successfully deployed in 54 cases with a success ratio of 96.7%. 2 failures occurred, among which 1 died of pulmonary emblization and 1 of hydropericardium. It is concluded that appropriate classification of BCS may be very helpful in the selection of proper therapy. The method of endovascular intervention is mini traumatic and simple. It is feasible for most types of BCS, and also a kind of safe and effective therapy, which can replace most open surgeries.