Objective To explore the diagnosis and treatment of intestinal duplication by means of laparoscope. Methods 9 cases suspected intestinal duplication before operation underwent intraperitoneal exploration through two-trocar laparoscope. Patients diagnosed as intestinal duplication were performed by enterectomy and end-to-end intestinal anastomosis outside abdominal cavity through a 10mm trocar. Results All cases were operated on under lapascope with a mean operative time of 80min(30min～110min).The postoperative hospital stay was 4d～5d . No complications occurred. Conclusions Two-trocar laparoscope is an effective method to diagnose and treat intestinal duplication.