At present, minimally invasive surgery mostly refers to the surgical methods done under laparoscopy, which has the characteristics of small surgical trauma and fast postoperative recovery. Minimally invasive surgeries are mainly common in clinical practice: 1) gastrointestinal surgery, such as laparoscopic radical surgery for gastric cancer, laparoscopic resection of gastric mesenchymal tumor, laparoscopic radical surgery for colorectal cancer, laparoscopic resection of diverticulum of small intestine, laparoscopic appendectomy, laparoscopic hernia repair without tension. 2) diseases of hepatobiliary system, such as laparoscopic cholecystectomy, laparoscopic hepatectomy, laparoscopic splenectomy, laparoscopic pancreaticoduodenectomy. 3, obstetrical and gynecological surgery, such as laparoscopic myomectomy, laparoscopic radical treatment of endometrial cancer, laparoscopic resection of ovarian cysts. 4, urological surgery, laparoscopic drainage of renal cysts, laparoscopic radical treatment of renal cancer, etc., which are more common minimally invasive surgical methods in clinical practice.