The authors report their experience of one case of Budd-Chiari syndrome with total thrombosis of the portal vein. The patient was undergoing hepatico-atrial anastomosis with Senning's procedure. The original technique utilised extracorporeal circulation with hypothermia; the authors utilised venovenous bypass from femoral vein to axillary vein. Anastomosis function is proved with nuclear magnetic resonance and echo-Doppler on year after operation. Senning's procedure is feasible in the case of Budd-Chiari syndrome with total portal thrombosis with venovenous bypass without extracorporeal circulation with hypothermia.