Biliary tract infection after liver cancer ablation can be treated with general treatment, drug treatment and surgical treatment according to the degree of disease. 1. If the degree of biliary tract infection after liver cancer ablation is mild and not accompanied by other complications, it can be treated with fasting and water, nutritional supportive therapy, antispasmodic and analgesic drugs (such as atropine, pethidine), anti-infective drugs (such as moxifloxacin, cefroxazole), bile-relieving drugs (such as arbutin), etc. If biliary tract infection is more serious, anti-infective therapy and systemic supportive therapy should be carried out as soon as possible to alleviate the disease. 2. If the biliary tract infection is serious, anti-infective treatment and systemic supportive therapy should be carried out as soon as possible. After relief, the doctor should assess the condition and perform cholecystectomy if the patient can tolerate surgical treatment. If conservative treatment is ineffective, cholecystic drainage is feasible and cholecystectomy should be chosen after the condition is stabilized. When biliary tract infection occurs after liver cancer ablation, it should be standardized under doctor’s guidance according to specific conditions. In addition, the above drugs should also be used under doctor’s guidance.