 Hepatectomy is still the most important treatment for HCC.High recurrence rate mostly influence its prognosis, especially for the patient with tumor 5cm, multiple tumor and who cannot accept R0 resection.Our retrospective study showed sustained released 5-FU implanted into the liver incisal margin after tumor was resected could reduce the recurrence rate of HCC after liver resection.According to this, we proceed this RCT to prospectively observe the effect of sustained released 5-FU,and we also want to know whether combined with sustained released cisplatin will get better effect in preventing the tumor recurrence,especially in short time after liver resection. 