The life expectancy of a liver transplant patient depends on the disease for which the patient underwent liver transplantation. If the patient has a malignant tumor of the liver and undergoes liver transplantation, the survival period after surgery is about 3-5 years if the patient has a late tumor and has recurrence or metastasis after transplantation. If a patient undergoes liver transplantation due to cirrhosis or congenital diseases, such as bile duct occlusion, the survival period after the surgery is successful if the patient does not suffer from acute rejection or chronic rejection. It is recommended that patients should pay attention to not drinking alcohol, not staying up late, not straining, moderate resting speed, moderate eating more vegetables and fruits, and supplementing various trace elements. To avoid the possibility of intrahepatic bile duct and common bile duct stones.