目的　探讨膈下动脉对肝癌的供血及其介入性栓塞在肝癌治疗中的价值。　方法　原发性肝癌 35例 ,其中一例为肝癌并发胆道大出血。全部行肝动脉及膈下动脉造影 ,对肝动脉及有参与肝癌供血的膈下动脉分别进行化疗性栓塞治疗 ,胆道出血病例加用明胶海绵和弹簧圈栓塞。　结果　 35例中有 2 1例膈下动脉供血 ,主要为侵犯肝包膜的弥漫型肝癌和巨块型肝癌 ,供血的范围从 2 0 %～ 70 %。治疗后肿瘤缩小 4 0 %～ 5 0 % 14例 ,10 %～ 30 % 18例 ,无变化 3例 ,胆道出血停止。　结论　在肝癌的侧支供血中 ,膈下动脉是主要侧支动脉 ,行肝癌介入治疗需与肝动脉同时进行栓塞 Objective To investigate the value of subphrenic artery on the supply of liver cancer and its interventional embolization in the treatment of liver cancer. Methods 35 cases of primary liver cancer, one case of hepatocellular carcinoma complicated by biliary hemorrhage. All of the hepatic artery and subphrenic artery angiography, the hepatic artery and subphrenic arteries that are involved in the supply of liver cancer were treated with chemoembolization, and cases of biliary tract hemorrhage were treated with gelatin sponge and coil embolization. Results Twenty-one of the 35 cases had subphrenic artery blood supply, mainly diffuse hepatocellular carcinoma and giant-type hepatocellular carcinoma that encroached on the hepatic capsule. The blood supply ranged from 20% to 70%. After treatment, the tumor size was reduced from 40% to 50% in 14 cases and in 10% to 30% in 18 cases, with no change in 3 cases. The biliary bleeding was stopped. Conclusions In the collateral supply of liver cancer, the subphrenic artery is the main collateral arteries. Interventional treatment of liver cancer requires embolization with the hepatic artery