Due to anatomical reasons, the bile duct is only 0.2-0.4 cm thin and the sphincter of Oddi at the end of the common bile duct is usually closed and only opens after eating. In the process of stone removal, the stone must first pass through the cystic duct, through the common bile duct and through the narrow ring of the sphincter of Oddi at the end of the common bile duct, before it can be discharged to the intestine, and the stone is easily embedded in the cystic duct or the end of the common bile duct causing purulent cholecystitis, obstructive jaundice, causing abnormal liver function and aggravating the disease. Therefore, for the treatment of gallbladder stones, various medical (Chinese and Western medicine) treatments are less effective and are only used to treat gallbladder inflammation to relieve symptoms. Various extracorporeal lithotripsy and medication for stone removal have extremely low stone removal rates. The most effective treatment modality for gallbladder stones is surgery. The current popular surgical procedure is laparoscopic cholecystectomy. The gallbladder has the function of maintaining fluid pressure in the bile ducts, storing concentrated bile for digestion and secretion. Is it necessary to remove the gallbladder in all cases of gallbladder stones, regardless of the function of the gallbladder and whether it is normal or not? For patients with good gallbladder function, why not remove the stones and keep the gallbladder! Our hospital has successfully performed nearly 1,000 cases of small incision biliary stone retrieval using choledochoscopy, with precise efficacy and low recurrence rate. In recent years, on the basis of our previous endoscopic biliary lithotripsy, we have combined two cutting-edge international technologies, laparoscopy and choledochoscopy, to remove stones through two to three holes in the abdominal wall of 0.5-1.0 cm while preserving the gallbladder. The study was evaluated by experts in 2008 and reached the international advanced level. The advantages of this technique are: 1. The wide field of view of laparoscopy can be used to optimize the selection of indications; the difficult situation of stone extraction such as the neck of the gallbladder and the tortuous angle of the duct can be corrected under the mirror, which ensures the net rate of stone extraction and the effect of stone extraction and reduces the recurrence rate. 2. No incision, no suture, suture removal, light abdominal adhesion, small trauma, fast recovery and short hospitalization time. The fluctuation of patient’s body temperature and white blood cell after surgery is very small, which is difficult to be reached by other surgeries. 3. Very few complications. At present, hundreds of cases of laparoscopic biliary lithotripsy have been performed, and the cure rate has reached 100% without any complications. It has greatly reduced the pain of patients and is welcomed by the majority of patients.