Liu old man shook the hand of the general surgeon of Shanghai Ninth People’s Hospital and thanked him for removing the bile duct stones without surgery. It turned out that a week ago, Liu had an attack after eating greasy food: acute biliary pancreatitis and common bile duct stones. According to the traditional treatment method, he should be operated immediately. But Liu had a cholecystectomy and was afraid to operate again, and he also had a combination of hyperlipidemia, coronary heart disease and other medical conditions, so the risk of anesthesia surgery was high. The doctor weighed the pros and cons and decided to use the endoscopic biliary stone extraction technique, using a duodenoscope, which is slightly thicker and longer than a gastroscope, to remove three corn-sized stones from the common bile duct. The patient was discharged from the hospital after just one week with a smooth recovery without the need for surgery and relief of the disease. Acute biliary pancreatitis accounts for more than 50% of the overall incidence of pancreatitis, and biliary stones are the main cause of pancreatitis. The main symptoms are severe right upper middle abdominal pain, radiation to the lower back, nausea and vomiting, fever, jaundice and other symptoms. Early release of biliary obstruction is of vital importance to alleviate the progression of the disease. The most effective means of relieving biliary obstruction are traditional surgery and endoscopic techniques. Traditional surgery is very traumatic, and elderly patients have a lot of entrapment, the compensatory function of each organ is declining, and their tolerance to surgery is low, which leads to great risk and high postoperative complication rate. The so-called endoscopic lithotripsy technique, known as endoscopic retrograde cholangiopancreatography (ERCP), does not require general anesthesia and surgical incision in the abdomen, as long as the endoscope is inserted through the mouth to the descending duodenum, a slender catheter is inserted through the opening of the duodenal papilla, a contrast agent is injected, and the presence, location, number and size of biliary stones are determined under X-ray machine fluoroscopy. The papillary opening is cut larger, and then the lithotripter, lithotripter mesh basket, lithotripter airbag and other instruments are inserted to remove the stones one by one. Therefore, this technique can provide proper diagnosis and treatment of biliary pancreatitis. Doctors recommend that if you have biliary pancreatitis, you should be treated as soon as possible. In addition, ERCP can also diagnose and treat obstructive jaundice. Compared with the traditional surgery, it has the advantages of shorter course, less pain, lower cost, less bleeding and even no bleeding in most patients, less complications and can be repeatedly treated with stone extraction.