Appendicitis is the most common acute abdominal disease in surgery, and as we all know, the main method of treatment for acute appendicitis is appendectomy, and open appendectomy has a history of more than 100 years, which is a classic and mature operation with a low complication rate. Wouldn’t laparoscopy seem superfluous? In fact, this small incision appendectomy is only relative to some simple and easy to find appendix, and it only accounts for a very small part of appendectomy. Many obese patients or patients with difficulty in finding the appendix need to enlarge the incision. The diagnosis and treatment of ectopic appendicitis and atypical appendicitis are sometimes not simple. Laparoscopic appendectomy is performed by making three small incisions of 0.5 to 1.0 cm in the abdomen along the skin, one at the umbilicus, through which a mirror connected to a monitor and special instruments such as forceps are placed. The appendix is removed with special instruments, and the abdominal cavity is flushed out with a flushing system, while other organs in the abdominal cavity can be detected in time for lesions. Although the cost of laparoscopic appendectomy is increased compared to traditional open appendectomy, the actual benefits of laparoscopic appendectomy to the patient cannot be measured in monetary terms. There are many unavoidable complications of open appendicitis surgery, such as intestinal adhesions and intestinal obstruction due to the direct contact of the open surgeon’s hand with the intestinal canal or repeated irritation of the intestinal wall plasma membrane during surgery in order to clear the pus. Open surgery directly removes the diseased appendix from the incision, which is prone to incisional infection (up to 7%-30%). In acute appendicitis, pus and exudate accumulate in the intestinal space and pelvic cavity, and open surgery is not easy to clean up thoroughly due to the limitation of the incision, resulting in residual abscess or pelvic infection, which may cause secondary infertility in female patients. In the case of retroperitoneal or subhepatic appendix, open surgery must enlarge the incision or even open the incision to a large size, which often takes a longer time to find. In the management of exceptionally obese patients, open surgery is almost impossible to complete with a small incision, and even with an enlarged incision, the higher rate of incisional infection is not easily controlled. Some acute abdominal conditions are easily misdiagnosed as appendicitis, such as gastric perforation, pelvic inflammatory disease, pediatric intestinal diverticulum, and intussusception, and surgical appendiceal incision for these diseases cannot be done. To sum up, laparoscopic appendicitis surgery has the following advantages: 1, laparoscopic surgery does not directly touch the diseased appendix by hand, the chance of intestinal adhesions and intestinal obstruction is very small, while the incision of laparoscopic surgery is small, the appendix is removed without touching the incision, and incision infection rarely occurs. 2.Laparoscopic surgery has little interference with the abdominal cavity, light pain, early postoperative activity of patients, fast recovery of gastrointestinal function, and shortened hospitalization time. 3, laparoscopic surgery has only a few small holes, almost no scar after surgery, and does not change the appearance of the abdomen. It is especially suitable for female, pediatric, obese patients and patients who have difficulties in open surgery. 4, laparoscopic surgery can be a comprehensive abdominal cavity exploration, can find out whether all other organs in the abdominal cavity lesions, for the diagnosis of difficult acute abdominal disease, laparoscopy can also complete the diagnosis and treatment.