The cause of acute biliary pancreatitis is mostly the gradual migration of stones in the gallbladder into the common bile duct, and when the stones are discharged from the bile duct, the edema and inflammation of the sphincter caused by the stones passing through the duodenal sphincter leads to poor pancreatic outflow and even pancreatic reflux; sometimes the stones may be embedded in the duodenal papilla and cannot be discharged, and these conditions may induce acute pancreatitis; if not Therefore, open cholecystectomy or laparoscopic cholecystectomy should be performed as soon as possible (about 4-8 weeks) after the acute pancreatitis is controlled to reduce the possibility of recurrence of acute biliary pancreatitis. However, there are some patients whose acute biliary pancreatitis is not caused by stones in the gallbladder migrating into the common bile duct, but by primary stones in the common bile duct or due to stones in the intrahepatic bile duct migrating into the common bile duct. In these patients, even if the gallbladder is removed, there is still a possibility of pancreatitis. Therefore, for these patients who still have episodes of biliary pancreatitis after removal of the gallbladder, further magnetic resonance pancreaticobiliary imaging should be performed to rule out the possibility of bile duct stones or intrahepatic bile duct stones.