Acute pancreatitis vomiting has various causes. Firstly, the pancreas is a digestive organ, and upon the onset of pancreatitis, a large amount of pancreatic enzymes is secreted, which significantly affects digestive functions. This easily causes gastrointestinal reactions, and if undigested stomach contents remain in the stomach cavity for too long, it will increase stomach cavity pressure, leading to frequent vomiting. The vomiting caused by acute pancreatitis generally does not alleviate symptoms after vomiting. The treatment primarily targets acute pancreatitis, including enzyme inhibition, acid suppression, and fasting to help reduce vomiting. The occurrence of vomiting is also related to increased intra-abdominal pressure. Following the onset of acute pancreatitis, if treatment is not timely, it can lead to increased intra-abdominal pressure. This increase in pressure can affect gastrointestinal motility, causing reflexive symptoms of nausea and vomiting.