Objective To investigate the operating skills for treatment of morbidly obese patients with gallstone by using laparoscopic technique meanwhile. Methods From Oct.2006 to Nov.2009, 178 morbidly obese patients undergoing laparoscopic adjustable gastric banding （LAGB）, in which 18 cases combined with gallstone underwent laparoscopic cholecystectomy （LC） meanwhile. Results All of 18 morbidly obese patients with gallstone underwent LAGB and LC successfully, the operating time was (126±24) min and bleeding volume was (50±16) ml. No serious infectious complications occurred, but 3 cases with low-grade nausea and vomiting, 2 cases with adipose tissue liquefaction in incision, and one case with few seroperitoneun， all were cured conservatively. Conclusion Morbidly obese patients with gallstone undergoing LAGB and LC at the same time by changing site of incision is a safe and effective procedure and a feasible technique.