1.Truly high ligation of the spermatic vein, no dislodgement of the embolus, low recurrence rate; 2.Operated under the magnification of the camera system, clear vision, easy to identify the direction and number of the spermatic vein, do not miss the ligation of the spermatic vein; higher ligation position, better results; 3.No dissection of the levator muscle, to avoid damage to the external spermatic vein, vas deferens arteriosus, facilitate the establishment of postoperative lateral circulation and recovery; 4.Trans-abdominal The operation does not require another incision, and can deal with varicocele on both sides at the same time, and for bilateral varicocele; 5, less injury, less pain, faster recovery, no obvious scar left after the operation, and more beautiful; 6, the density, vitality and + grade sperm improvement of patients after laparoscopic surgery are better than open surgery; 7, Palmo surgery, intraoperative identification of the spermatic artery is not required, and postoperative observation has not yet caused There is no report of testicular atrophy.