The patient is a 75-year-old male. Abdominal ultrasound tomography in June 2002 revealed hepatocellular carcinoma with intrahepatic metastasis (IM3) and tumor thrombi (Vp4, Vv3) at S4 in the major portal and hepatic vein. From July 2002, he received hepatic arterial infusion therapy (FAP: 5-fluorouracil, CDDP and adriamycin) for these lesions. In December 2002, these lesions had disappeared completely after 6 sessions of arterial infusion therapy. The patient is still alive with no recurrence after 2 years since the beginning of this treatment. Recently, we treated 9 patients with combined arterial infusion chemotherapy (FAP), and the response rate (CR and PR) was 44% and no major side effect was observed. In conclusion, some patients may obtain longer survival through this treatment, even in cases of advanced HCC with tumor thrombus in the major trunks of portal vein and/or hepatic vein.