Alcoholic liver, or alcoholic liver disease, is a disease of liver damage caused by long-term heavy drinking, and fatty liver is fatty degeneration of liver cells caused by a variety of reasons. Alcoholic liver is a disease diagnosis of liver damage disease caused by long-term heavy drinking. Ethanol damage to the liver is mainly manifested as hepatocellular steatosis, which is seen as scattered single or small patches of hepatocellular involvement in mild cases, and in severe cases, it can manifest as diffuse steatosis of the liver, which is also known as alcoholic fatty liver. Fatty liver is a pathologic diagnosis or imaging diagnosis of fatty degeneration of liver cells due to a variety of causes, and the most common causes include chronic alcohol consumption, chronic hepatic stasis, and moderate and infectious liver disease. The diagnosis of alcoholic liver disease and fatty liver should be determined by a doctor based on medical history and test results, and any related symptoms should be sought promptly to avoid misdiagnosis and mistreatment.