A 45-year-old male with severe hypertension and a left retroperitoneal ectopic pheochromocytoma, 7-8 cm, with significant compression of the left renal vein and artery. Today the tumor was completely removed laparoscopically with the aid of a 3-arm robot, the left renal vein was preserved intact with difficulty, and the kidney was successfully preserved. Surgical bleeding was 200 ml. The operation time was 45 minutes. During the operation, the blood pressure increased when the tumor was extruded and decreased when the return vessel was blocked, and the director of anesthesia department, Peng Suwen, was in control. Doctors and nurses Shen Zhoujun, He F Chao, Guo Jian and Chen Yuan cooperated well. The surgery went smoothly.