Decline in liver function is mainly considered as hepatitis, liver cancer and other conditions, which need to be maintained through general, physical and medication ways. 1. General way: For the decrease of liver function caused by drugs and alcoholic hepatitis, stopping drugs or alcohol at this time will make the liver function slowly return to normal, and reducing alcohol consumption and eating smoked barbecue food in daily life will also protect the liver function. 2. Physical way: through appropriate massage, regular exercise, promote body metabolism, will also be conducive to the repair of damaged liver cells, promote the recovery of liver function. 3. Pharmacological approach: when patients develop hepatitis and liver cancer, they must take antiviral drugs or chemotherapeutic drugs regularly, such as entecavir and sorafenib, to actively treat the disease, slow down the progress of the disease, and prevent the liver function from declining further. However, the drugs should not be used blindly and should be administered under the guidance of a physician. Abnormal liver function should be standardized under doctor’s guidance.