A 50-year-old male was admitted to the hospital with “pain in the lower abdomen and urethra with urgency and frequency of urination for more than 10 months”. Cystoscopy and biopsy showed carcinoma in situ of the bladder. Transurethral bladder tumor diagnostic electrocision showed: multiple high-grade uroepithelial carcinoma of bladder mucosa. After discussion in the department and full communication with the patient, it was decided to perform “3D laparoscopic radical cystectomy + pelvic lymph node dissection + ileocystectomy”. During the operation, 5 laparoscopic channels were established at the umbilicus and the left and right lower abdomen, the right lower and middle ureter was freed, the right pelvic lymph node dissection was performed, the left lower and middle ureter was freed, the left pelvic lymph node dissection was performed, the vas deferens, seminal vesicles and the posterior portion of the prostate gland were freed, the anterior wall of the bladder was freed, the deep dorsal vein of the penis was sutured, the lateral ligaments of the bladder and the prostate gland were freed, the urethra was dissected, and the bladder, the prostate and the urothelium were completely resected. The bladder, prostate and seminal vesicles were completely removed, and a lower abdominal incision of about 6 cm was made to remove the resected tissues. With the assistance of Associate Professor Jinbo Jiang of the Department of General Surgery, about 20 cm of ileum was removed from the ileocecal region at a distance of about 15 cm to replace the bladder, and the ureter was reimplanted in this section of ileum, and the ileostomy was placed in the right lower abdomen. The operation went smoothly, with blood loss of about 100 ml. Compared with normal laparoscopy, 3D laparoscopy has the advantages of stereoscopic, intuitive, and clear, effectively restoring the three-dimensional surgical field of the real vision. 3D laparoscopic surgery can effectively shorten the operation time, achieve more delicate separation, resection, and reconstruction under the laparoscopy, as well as minimize the tissue bleeding and damage without increasing the cost of the operation. In the past year, Prof. Shi Benkang has successfully performed a number of 3D laparoscopic surgeries, including 3D laparoscopic radical prostatectomy, radical nephrectomy, partial nephrectomy, and adrenalectomy, etc., and has accumulated rich clinical experience.