Abstract: Hepatocellular carcinoma is one of the most common malignant tumors worldwide.Proper treatment following early diagnosis and regular follow-ups with correct evaluation are keys to improving the survival of hepatocellular carcinoma patients.However, being asymptomatic in the early stage, most patients with hepatocellular carcinoma cannot endure the main curative therapies of surgical resection and hepatic transplantation because of poor hepatic reserve and donor shortage.Radiofrequency ablation(RFA) is a major representative of local minor-invasive treatment methods.RFA is widely used as a curative treatment option for liver tumors due to its safety and repeatability.However, the main obstacles of residual tumor and intrahepatic recurrence greatly hinder the clinical application of RFA. The accurate discrimination of residual tumor after RFA via image examination is critical to the evaluation of prognosis and retreatment possibility.This article summarizes the imaging characteristics of hepatocellular carcinoma after RFA to provide credible information for clinical applications.