Autoimmune Liver Disease Antibody Quadruple Test is anti-nuclear antibody, anti-hepatorenal microsomal type 1 antibody, anti-smooth muscle antibody, anti-hepatic cytoplasmic type 1 antibody, which is mainly used to assist in the diagnosis of the disease, so as to carry out timely treatment. Autoimmune liver disease is liver and gallbladder damage caused by autoimmune abnormalities, and common types include autoimmune hepatitis and primary sclerosing cholangitis. Often these diseases cause damage to liver cells and the appearance of corresponding antibodies. If there is hepatocellular damage and other diseases are ruled out, antibody quadruple test can be performed to assist in the diagnosis of autoimmune liver disease so that treatment can be carried out. Commonly used antibodies include anti-nuclear antibody, anti-hepatorenal microsomal type 1 antibody, anti-smooth muscle antibody, and anti-hepatocytoplasmic type 1 antibody. If autoimmune liver disease is suspected, it is important to undergo the antibody test under the guidance of a doctor to make a clear diagnosis and treatment in a timely manner.