A Trial of SHR-1210 (an Anti-PD-1 Inhibitor) in Combination With FOLFOX4 in Subjects With Advanced HCC Who Have Never Received Prior Systemic Treatment.

Inclusion Criteria:

Has not received prior systemic treatment for their advanced/metastatic HCC. Has measurable disease according to RECIST v1.1. ECOG Performance Status of 0 or 1. Child-Pugh Class A or B with 7 points. Life Expectancy of at least 12 weeks. HBV DNA\<500 IU/ml. Adequate organ function： Male or female participants of childbearing potential must be willing to use an adequate method of contraception starting with the first dose of study drug through 120 days after the last dose of study drug.

Exclusion Criteria:

Known fibrolamellar HCC, Prior malignancy active with the previous 5 years except for locally curable cancers that have been apparently cured.

Known or occurrence of central nervous system (CNS) metastases. Ascites with clinical symptoms. Known or evidence of GI hemorrhage within the past 6 months. Known or occurrence of hemorrhage/ thrombus. Suffered from grade II or above myocardial ischemia or myocardial infarction, uncontrolled arrhythmias.

Grade III\~IV cardiac insufficiency, according to NYHA criteria or echocardiography check: LVEF\<50%.

Hypertension and unable to be controlled within normal level following treatment of anti-hypertension agents (systolic blood pressure \> 150mmHg, diastolic blood pressure \> 90 mmHg).

History of hepatic encephalopathy. Known history of human immunodeficiency virus (HIV) infection. Active infection or an unexplained fever \> 38.5°C during screening visits. Prior or planning to organ transplantation including liver transplantation. Interstitial lung disease that is symptomatic or may interfere with the detection and management of suspected drug-related pulmonary toxicity.

Proteinuria≥ 2+ and 24 hours total urine protein \> 1.0 g. Active known, or suspected autoimmune disease. Subjects with a condition requiring systemic treatment with either corticosteroids (\>10 mg daily prednisone equivalent) or other immunosuppressive medications within 14 days of first administration of study treatment.

Any loco-regional therapy to liver (included but not limited: resection, radiotherapy, TAE, TACE, TAI, RFA or PEI) within 4 weeks prior to study.

Known history of hypersensitivity to monoclonal antibodies or any components of the study drugs.

Pregnant or breast-feeding women. According to the investigator, other conditions that may lead to stop the research.