The ultimate goal of single-port laparoscopy in gynecology: to maximize the physiological and psychological recovery of the patient, the core of minimally invasive surgical techniques: to minimize the physiological and psychological trauma caused by surgical procedures to the patient. Single-port laparoscopic surgery (laparoendoscop ic sing le-sitesurgery, LESS) is the concentration of the traditional multiple orifices into a single orifice for the placement of multiple operating instruments to complete the microscopic surgical operation. With the improvement of instruments and skilled operation technique, LESS is rapidly developing in gynecology and other fields. The umbilicus is a natural scar of the human body, with close connection of all layers, and is the thinnest part of the abdominal wall, without subcutaneous muscle and fat tissue, and with few vascular and nerve distribution, so the perforation hole bleeds less, the postoperative incision is less painful, and the cosmetic effect of the operation is taken into account, which makes it a popular choice in laparoscopic surgery. The incision size is usually 1.5-3 cm. 2. Single-port laparoscopic instrumentation 1) Use of single-port multi-channel platform (porograph) 2) No single-port multi-channel platform (porograph) 3. The operation requires a four-channel porograph or a 2-3 mm auxiliary puncture hole, with low surgical bleeding and good results. Single-port laparoscopy is mainly for cutting and coagulation, and it is difficult to suture and tie the knot. We have completed myomectomy with a maximum diameter of 8 cm, which can be completely sutured and tied under single-port laparoscopy. 3, single-hole laparoscopy-assisted hysterectomy in the negative: laparoscopic operation is mainly cutting and coagulation, surgical operation is not very difficult, the negative operation can be more, the intraoperative addition of the uterus lifter can not use the single-hole multi-channel platform, the cosmetic effect is good. 4, infertility tubal plastic and ectopic pregnancy, single-hole laparoscopic surgery time, postoperative bleeding, postoperative analgesic drugs compared with traditional laparoscopy is not much difference. The cosmetic effect of the surgery is good.