Appendicitis is a common and frequent disease in general surgery, appendectomy is the fundamental means of clinical treatment of various types of appendicitis. Surgical methods: (1), preoperative preparation: preoperative routine skin preparation, empty the bladder, do not have to routinely leave a urinary catheter and gastric tube, using endotracheal intubation general anesthesia; (2), incision poking holes: umbilical cord on the edge of the lcm curved incision, for observation holes. Insert a pneumoperitoneum needle to quickly fill carbon dioxide gas to establish pneumoperitoneum, pneumoperitoneum pressure is maintained at 12-14mmHg, then insert a 10mm trocar and place a 30° laparoscope to explore the abdominal cavity. After observing the general condition of the abdominal cavity in the order of upper right, upper left, lower left, pelvis, and lower right, and excluding the possibility of other diseases, a 5-mm incision was made 5 cm above the pubic symphysis under the direct vision of the laparoscope as a secondary operation hole. Take the position of head-low-feet-high and tilt 30° to the left, use the suction device to suction the pus from the abdominal cavity, find the appendix along the colonic band, make a 10-mm incision at the antimacrodermal point, and place a 10-mm trocar as the main operation hole and specimen removal channel. Separation forceps, ultrasonic knife, electric hook, suction, etc. can be placed; (3,) appendectomy: from 5mm Trocar into the ordinary grasping forceps, anti-Mac’s point 10mm Trocar into the electrocoagulation vascular forceps. If the appendix is adherent first free, fully expose the root of the appendix. Grasping forceps grasp the head of the appendix to the direction of the front abdominal wall to lift, so that the appendiceal mesentery appeared to a certain degree of tension, with electrocoagulation vascular forceps from the head of the appendix began to close to the appendix to clamp the mesentery, coagulation of 2 ~ 3s with the hook of the mesentery will be gradually coagulation cut off to the root of the appendix. The appendix was cut off at 0.5cm from the root of the appendix after ligation with absorbable thread, and the appendiceal stump was treated with electrocoagulation, and the appendiceal stump was not encapsulated. During the operation, if there is no appendiceal perforation, only suction or use gauze to wipe clean the exudate around the appendix, not flush, so as to avoid the spread of inflammation, causing postoperative fever, such as the abdominal cavity has oozing or pus with saline or metronidazole injection to flush clean, the abdominal cavity is not put drain, gangrenous perforated appendicitis and diffuse peritonitis, after the removal of appendicea, with a large amount of saline and tinidazole solution to flush suction clean, poke holes on the pubic symphysis. A drainage tube is placed in the suprapubic symphysis. If an abscess has formed in the appendix, use vascular forceps to separate the pus cavity, and after suctioning out the pus, try to find, free, and remove the appendix after flushing with tinidazole solution, and then put a drainage tube. (4), the appendix out of the abdominal cavity: appendix diameter less than 1cm, can be directly removed from the trocar. If the diameter of the appendix is greater than 1cm, the appendix can be cut off the appendiceal peritoneum or the appendix can be removed directly from the trocar after being shredded and packed in a specimen bag. Remove the appendix, turn off the pneumoperitoneum machine, evacuate the intra-abdominal gas, suture the incision, and end the operation.