Poor liver function is mostly indicative of liver cell damage, and the liver can be toned up by regulating diet and living habits, regulating emotions and moods, and medication. 1. Regulate diet: high animal protein, high cholesterol food and alcohol will increase the burden on the liver. Diet should be light, eat more vegetables and fruits, strictly prohibit alcohol, if you really need to supplement protein, try to consume food containing vegetable protein. 2. Adjust living habits: keep enough sleep, avoid staying up late, increase the amount of exercise to improve the blood supply to the liver. 3. Adjustment of emotions: keep a happy mood and a stable mind, avoid anxiety, anger and tension. 4. Medication: When liver cells are damaged, liver-protecting drugs, such as glycyrrhizic acid preparation, can be given under the guidance of professional physicians. For patients with poor liver function, it is recommended to consult a doctor in time and follow the doctor’s instructions for treatment and recuperation.