Objective To study the effect on liver hemodynamics of portal arterialization and complete shunt (PACS), splenorenal shut （SRS） and peripheral cardia divided vessel (PCDV). Methods The preparation of canine model was made. Group PCDV accepted a splenectomy and peripheral cardia divided vessel, while the group SRS accepted a spleen-renal vein shunt. Group PACS accepted a splenectomy, splenic artery and upper portal vein anastomosis, and complete portal-caval shunt. The blood pressure and flow of the portal system were observed. The hepatic function was also measured before and 2 weeks after the three kinds of operation. Results In the PCDV group, the postoperative PVF decreased in 17% while PVP decreased in 5%. In the SRS group, the postoperative PVF decreased in 51% while PVP decreased in 51%. In the PACS group, the postoperative hepatic inflow PVF increased to 180% of the former while PVP increased to 196%; the caval-inflow PVF increased to 130% of the former while PVP decreased to 46%. The results of PACS group had a magnificent statistic difference comparing with those two traditional operations （P＜0.05，P＜0.01）. ALT obviously increased after SRS （P＜0.05）, whereas slightly changed after the other two. Conclusion PACS can significantly increase the hepatic inflow and decreased the blood pressure of the portal system with a pleasant dog survival, and without obvious influence to the hepatic function. It may be a worthy attempt in the treatment of portal hypertension and need more research work going on.