After 48 hours after ERCP, you can eat rice soup, milk and other fluids, and after 2-3 days without any abnormality, you can eat millet porridge, sesame seed paste and other semi-liquid food, and after 5-8 days, you can gradually return to normal diet. ERCP is endoscopic retrograde cholangiopancreatography, which is an important method for diagnosis and treatment of biliary system diseases and is a minimally invasive technique. Generally speaking, if there is no abnormality after 48 hours after the operation, you can start to eat fluids, such as milk, chicken soup, etc. For 2~3 days when your physical condition is better and no complication occurs, you can eat some semi-liquid food, such as millet porridge, sesame paste, etc.; you can return to normal eating after 5~8 days. After ERCP surgery, you need to follow the doctor’s instructions for eating and care, so as not to cause complications.