From the March of 1993 to the May of 1994, we had performed laparoscopic cholecystectomy (LC) for 200 patients of the age ranged 19-77 years. In these cases, 12 had previous abdominal surgery; 3 cases had hepatic cysts; 11 cases had stones in the neck of gall bladders. We had successfully performed LC for 190 cases (95%). But we also had some unsuccesful experiences, including accidental injury to the stomach or duodenum, and bleeding from cystic arteris of the gallbladder. Operation (LC) was abandoned in one patient because of severe cardiac arrhyshmia developed during operation, and billiary tract injury was found postoperatively in three patients with no postoperative death. The operative indications and technical problems of LC are discussed in detail and measures in avoiding injury to billiary or GI tract from LC are introduced.