Inclusion Criteria:
* 1\. Age: 18-65 years old, gender is not limited; 2. Patients with hepatocellular carcinoma after radical surgical resection or radiofrequency ablation; 3. HBsAg positive; 4. Intraoperative pathology showed no residual incision margin, and imaging confirmed as complete remission (CR) within 4 weeks after operation; 5. The investigator evaluates that they can receive peginterferon and nucleoside (acid) analog therapy; 6. Sign the informed consent form and be able to comply with the requirements of the program; if the patient cannot sign the informed consent form, his/her legal guardian or agent must sign it.
Exclusion Criteria:
* 1\. Are receiving hepatotoxic drugs, immunosuppressants or targeted drug therapy, or receiving adjuvant chemotherapy after surgery; 2. Past or concurrent with other malignant tumors, except for cured skin basal cell or squamous cell carcinoma and cervical carcinoma in situ; 3. Those who are allergic to interferon alpha and its drug components, and those who are judged by the investigator to be unsuitable for the use of interferon alpha; 4. Combined with HAV, HCV, HDV, HEV, HIV infection, alcoholic liver disease, genetic metabolic liver disease, drug-induced liver disease, non-alcoholic fatty liver disease and other chronic liver diseases; combined with autoimmune diseases, including autoimmune liver disease, Psoriasis, etc.; 5. Neutrophil count \< 1.5 x 109 cells/L or platelet count \< 80 x 109 cells/L; 6. Creatinine is higher than 1.5 times the upper limit of normal; 7. Patients with serious diseases of the heart, lung, kidney, brain, blood and other important organs; 8. Patients with severe neurological and psychiatric diseases (such as epilepsy, depression, mania, seizures, schizophrenia, etc.); 9. Unstable control of diabetes, hypertension, thyroid disease, etc.; history of severe retinopathy or patients with retinopathy shown by other evidence; 10. Child-Pugh is graded C; 11. Drug abuse or alcoholism; 12. Infection, hemorrhage or other postoperative complications deemed unsuitable to participate in the study during the baseline examination; the baseline examination indicates the recurrence and metastasis of liver cancer; 13. Pregnant or breastfeeding women or patients who have a pregnancy plan and are unwilling to contracept during the study period; 14. The investigator believes that the subject's current condition is not suitable for participating in this study; 15. Patients who participate in other clinical research trials at the same time.
