Objective To investigate the clinic effects of transcatheter arterial chemoembolization (TACE) combined with injection of hyper- thermic lipiodol into tumor body in treating large hepatic carcinoma. Methods A total of 86 patients with primary hepatic carcinoma were randomly and equally divided into the study group (n = 43) and control group (n = 43). TACE combined with injection of hyper-thermic lipiodol into tumor body was carried out in the patients of the study group , while only TACE was performed in the patients of the control group. The results were compared between the two groups. Results The effective rate of the study group and the control group was 68%and 53%respectively , and the difference between the two groups was statistically significant. The difference in the changes of tumor size after the treatment between the two groups was also statistically significant. In the study group, the survival rates at 6, 12, 18 and 24 months after the treatment were 100% (n = 43), 84% (n = 36), 53% (n = 23) and 33%(n=14) respectively, while in the control group the survival rates were 94% (n=40), 70% (n=30), 37%(n = 16) and 21%(n = 9) respectively. No statistically significant differences in postoperative liver function damage existed between the two groups. Conclusion TACE combined with injection of hyper-thermic lipiodol into tumor body is obviously superior to routine TACE in treating large hepatic carcinoma.