The normal range of glutamyltransferase is 0-40 U/L, if the value is 300 U/L, it suggests that liver function is abnormal, the possible causes are hepatitis, cirrhosis, etc., it should be necessary to find the cause of the disease, according to the cause of the treatment, such as viral hepatitis need to use interferon and other treatments, alcoholic liver disease need to quit drinking, and at the same time carry out the treatment of liver preservation. 1. Finding the cause of the disease: if it is caused by drinking, strictly abstain from drinking; if it is caused by drugs, stop using drugs immediately. If it is caused by viral infection, anti-viral treatment, such as interferon, should be carried out. If it is caused by autoimmune diseases, such as autoimmune hepatitis, primary biliary cholangitis, etc., we should actively treat the primary disease. 2. Hepatoprotective treatment: some drugs can be used to help liver recovery, such as reduced glutathione, glycyrrhizic acid and so on. 3. Adjustment of living habits: pay attention to the adjustment of daily life and routine, pay attention to rest, and choose light, easy-to-digest food rich in high quality protein to promote the recovery of liver function. If you have elevated glutamyltransferase, you should consult a doctor in time to clarify the cause of the disease and carry out treatment under the guidance of a professional physician, rather than blindly treating the disease on your own, which may lead to adverse consequences.