primary liver cancer(PLC)is one of the world's most common malignancies, especially in East-Asian countries.Hepatitis B virus (HBV) infection is associated with 70-90% of PLC cases in China. PLC can develop during any stage of the natural course of chronic HBV infection and anti-virus therapy should be considered during the management of PLC. However, there is no definite guide on when or how to practice the anti-virus therapy, especially in unresectable or inoperable PLC. Because of these facts, research on the significant of the anti-virus therapy in the HBV-related PLC is urgently needed.