Autoimmune liver refers to autoimmune hepatitis, and the diagnosis is usually confirmed by looking at the indicators of elevated alanine aminotransferase, alanine aminotransferase, positive autoantibodies, and elevated immunoglobulins. 1. Elevated alanine aminotransferase (AST) and alachlor aminotransferase (AAT) is one of the indicators for the diagnosis of autoimmune liver disease. 2. Positive autoantibodies: In autoimmune hepatitis, positive autoantibodies are usually seen in antinuclear antibodies, anti-smooth muscle antibodies, and anti-liver and kidney microsomal antibodies. 3. Elevated immunoglobulin: autoimmune hepatitis is usually dominated by elevated IgG immunoglobulin, and if it is primary biliary cholangitis, it usually manifests as elevated IgM globulin. As long as the above indicators are positive, autoimmune hepatitis can be diagnosed, and it is recommended to standardize the treatment under the guidance of physicians.