RFA Plus Carrizumab vs Carrizumab Alone for HCC

Inclusion Criteria: 1. Age from 18-75 years 2. Diagnosis as hepatocellular carcinoma from histology and cytology 3. BCLC B-C degree 4. Score of ECOG PS: 0-2 5. Child-Pugh Score: A or B 6. Not suitable for resection or liver transplantation 7. Have not received systemic therapy 8. Have at least one evaluable target mass from CT or MRI according to mRECIST 9. The estimated survival time ≥ 12 weeks 10. Patients with HBV infection having HBV-DNA \<500IU/mL and standard anti-virus treatment. Patients with HCV infection must receive standard anti-virus treatment. 11. The function of main organs normal 12. Sign informed consent Exclusion Criteria: 1. Have cholangiocarcinoma, mixed type of hepatocarcinoma and fibrolamellar hepatocellular carcinoma. Have incurable malignant tumor in five years. 2. Have local ablation, TACE or radiotherapy in 3 months before enrolled. 3. Prepared to or have received organic or bone marrow transplantation. 4. Uncontrollable ascites, hepatic encephalopathy or esophageal and gastric varices. 5. Have hypertension and can't lower down to the normal level using blood pressure medication. 6. Have type II myocardial ischemia or myocardial infarction, uncontrollable arrhythmia. 7. Have diseases to influent the effect of oral drugs, for example, unable to swallow, chronic diarrhea and intestinal obstruction. 8. Have gastrointestinal bleeding in 6 months 9. Have abdominal fistula, gastrointestinal perforation or abdominal abscess 10. Patients with lung fibrosis, interstitial pneumonia, pneumoconiosis, radiation pneumonitis, drug related pneumonia or severe dysfunction of lung. 11. Routine urine test showed urinary protein ≥++ or the 24 hours amount of urinary protein ≥1.0 g 12. Patients have autoimmune disease 13. Patients need corticosteroid or other immunosuppressant therapy 14. Patients have anti-tumor vaccine and other immunostimulate anti-tumor drugs in 3 months 15. Allergy to monocloning antibody 16. Pregnant or breastfeeding female Other patients not suitable to be enrolled in the study.