Abstract: Objective To evaluate clinical therapeutic effectiveness of stereotactic conformal radiotherapy （body gamma knife）combined with transcatheter arterial chemoembolization（TACE）for primary hepatic carcinoma（PHC）. Methods A total of 120 patients with unresectable PHC were randomly divided into two groups. 58 patients were treated with TACE，while 62 patients with TACE combined with stereotactic conformal radiotherapy. Results There were 7CR，28PR，16NC and 7PD in the group treated with TACE and 10CR，39PR，11NC，2PD in the group treated with TACE combined with stereotactic conformal radiotherapy；The group treated with TACE had a median survival duration of 9.3 months and 12.5 months in the group treated with TACE compared with stereotactic conformal radiotherapy. Conclusion The stereotactic conformal radiotherapy technique combined with transcatheter arterial chemoembolization is a safe and effective treatment for PHC and improve the survival of PHC patients．

Key words: Primary hepatic carcinoma, Body gamma knife, Transcatheter arterial chemoembolization