Gallbladder disease is very common in obese patients. Concomitant cholecystectomy with laparoscopic sleeve gastrectomy (CC-LSG) may be necessary in such cases, and it has been proven safe when indicated. Herein, we presented an experience of our practical four-port-sharing technique for CC-LSG that can substitute the conventional trocar placement. A cohort study was conducted between January 2017 and March 2022 using a prospective database. Out of 238 patients with obesity who underwent bariatric surgery, 45 patients with gallbladder disease received CC-LSG using our four-port-sharing technique. The patients' demographic characteristics, intraoperative outcomes, and postoperative outcomes were examined. Of 45 obese patients with gallbladder disease undergoing CC-LSG, 18 patients with symptomatic cholelithiasis, 25 patients with asymptomatic cholelithiasis, and 2 patients with gallbladder polyps were identified. The mean age of these 45 patients (26 men and 19 women) was 38.3 years, and the mean body mass index was 41.8 kg/m2. There was no case of conversion to laparotomy. The mean operative time of LC and following LSG, the volume of blood loss, and hospital stay were 52.7 minutes and 95.2 minutes, 13.3 mL, and 3.8 days, respectively. No postoperative complications, including hemorrhage, bile leakage, staple leakage, pulmonary embolism, incisional hernia, and wound infection were noted. In CC-LSG, the application of our four-port-sharing technique is safe and feasible for obese patients with gallbladder diseases.