Till now, trans-arterial chemoembolization (TACE) is still one of the common modalities in treating hepatocellular carcinoma patients with unresectable intermediate stage. However, residual viable HCC after TACE is not uncommon, leading to a poor overall survival after TACE alone. Recently, stereotactic ablative radiotherapy (SABR) has been reported to be potentially useful for curatively managing early-stage HCC in retrospective studies. Thus, conducting a randomized clinical trial to test the role of SABR in eradicating post-TACE residual tumors is therefore encouraged. The present phase-III trial intended to compare clinical outcomes between TACE + SABR and TACE + re-TACE for HCC patients with post-prior-TACE residual tumors.