Gastric tube is inserted for the purpose of gastrointestinal decompression in patients with pancreatitis, and it can also be understood that gastric tube is inserted for the purpose of gastrointestinal decompression in patients with pancreatitis. Because the main clinical manifestations of pancreatitis patients are abdominal pain and abdominal distension, and in severe cases, paralytic intestinal obstruction will occur, which will lead to very serious abdominal distension and abdominal pain symptoms, and gastrointestinal decompression is needed to relieve the symptoms of abdominal distension and abdominal pain. Therefore, a gastric tube needs to be inserted to absorb the gas, liquid and food from the stomach cavity, which can significantly reduce the symptoms of abdominal pain and bloating. In addition, patients with pancreatitis also need to actively cooperate with fasting, while giving symptomatic and supportive treatment such as massive rehydration, inhibition of pancreatic enzyme secretion, inhibition of gastric acid secretion, anti-inflammation, infection control, correction of electrolyte disorders, and correction of acid-base balance.