Laparoscopic techniques refer to the establishment of observation and operation channels in the abdomen, lumbar and thigh areas, and the realization of intracavitary operations with the assistance of laparoscopic instruments or da Vinci robotic arms for the purpose of intracavitary resection and reconstruction, and have largely replaced traditional open surgery, especially in the field of urology. At present, laparoscopic techniques have basically covered all areas of urology that traditionally require open surgery: such as adrenal tumor resection, nephrectomy (partial), pyeloplasty, pelvis and ureterotomy for stone extraction, full-length pelvic-ureteral resection, ureteral reimplantation, cystectomy + urinary diversion, bladder diverticulum resection, prostatectomy, retroperitoneal and pelvic mass resection, hernia repair, high ligation of varicocele Cryptorchidism resection or descending fixation, inguinal lymph node dissection, etc. Laparoscopy can do almost everything.