Objective To study the value of modified splenopneumopexy in the treatment of Budd-Chiari(syndrome)(B-CS).Methods The clinical data of 126 patients with BCS treated by modified(splenopneumopexy) were analysed retrospectively.Results In this series,the postoperative complication rate was 7.94%(112/126),the perioperative mortality rate was(1.60%)(2/126);and 86 cases were(followed) up for 9 months to 18 years,the mean time was(7.8±1.2)years,the effective rate was(83.7)%(72/86).Among them,22 patients followed up by color Doppler ultrasound,and 16 patients by(percutaneous) splenoportography(1 month~6 years after operation),which showed the collateral circulation of various diameters and numbers between the spleen and lung was formed.In 8 cases the operation was(ineffective) or B-CS recurred.Six cases died,two of them died of hepatoencephalopathy 2 and 3 years after operation respectively,two of upper digestive tract rebleeding,and 2 of hepatocellularcarcinoma.Conclusions Splenopneumopexy can decrease portal vein pressure,relieve hypersplenism and ascites,and control(or prevent) upper digestive tract bleeding.Splenopneumopexy is a valuable and worthy operation for B-CS,and can be widespread application.