With the continuous development of laparoscopic surgical instruments, perfection of surgical methods and improvement of surgical techniques in recent years, laparoscopic surgery for kidney tumors has become increasingly mature. It has been commonly carried out in large urological medical centers at home and abroad. In clinical work, patients often ask, “What is the effect of minimally invasive laparoscopic treatment of kidney tumor?” . The history of laparoscopic surgery is quite long, and Clayman first performed laparoscopic nephrectomy in the United States in June 1990. It has been developed for more than 20 years by now. The application of laparoscopic surgery as a minimally invasive surgical technique in renal surgery has gradually increased. In renal tumors, it mainly includes: laparoscopic partial nephrectomy, laparoscopic simple nephrectomy, laparoscopic radical nephrectomy for renal cancer, laparoscopic radiofrequency ablation for renal tumors, laparoscopic cryoablation for renal tumors and various robotic-assisted laparoscopic surgeries. 2. Long-term effect of laparoscopic surgery for oncology is consistent with open surgery. Foreign research data show that: for T1 (less than 7cm) renal tumor, there is no statistically significant difference in 5-10 years survival rate between laparoscopic partial nephrectomy and open partial nephrectomy; for T1-T2 renal tumor, there is no statistically significant difference in 5-10 years survival rate and recurrence and metastasis rate of kidney cancer patients between laparoscopic radical nephrectomy and open radical nephrectomy. For tumors below 3cm, the treatment effect of radiofrequency freezing technique is positive. 3. Laparoscopic kidney surgery has the advantage of minimally invasive. Compared with open surgery, laparoscopic surgery is less traumatic, less bleeding, faster postoperative recovery, shorter hospitalization time and minimally invasive in the perioperative period. This is demonstrated by: (1) relatively small surgical incision with little muscle and nerve damage open surgical incision is generally 18-25 cm, while laparoscopic surgical incision is 6-10 cm; (2) laparoscopy has a magnifying effect on the surgical area, which makes the operation more delicate and less bleeding. Open surgery bleeding volume is generally 200-400ml; laparoscopic surgery blood volume is generally 50-150ml. ③ laparoscopic surgery is gentle and delicate to the operation and reduces the impact on the intestine, resulting in fast recovery of intestinal function and early feeding after surgery. Open surgery is generally 2-3 days, and laparoscopic surgery is generally 1-2 days. ④Short hospitalization time. Open surgery is usually discharged 7-9 days after surgery, and laparoscopic surgery is usually discharged 4-6 days after surgery. Radiofrequency surgery is generally discharged in 3 days after surgery. 4, the shortcomings of laparoscopic surgery Compared with open surgery, laparoscopic surgery is mostly carried out in large laparoscopic experienced medical centers, especially laparoscopic partial nephrectomy. Furthermore, because of the use of disposable consumables, the total hospitalization cost of laparoscopic surgery is higher than that of open surgery. However, because of the short total hospital stay and less medication, the overall cost difference between the two has not been significant in recent years. 5. Not all kidney tumors are suitable for laparoscopic techniques. In general, renal tumors that are superficially located, predominantly exophytic, located in the perinephric area and <4 cm in diameter are used as selection criteria for laparoscopic surgery to preserve the renal unit. In large laparoscopically experienced medical centers, some 4-7 cm renal tumors can also be operated laparoscopically for kidney preservation; for limited renal cancer (T1b-T2) of 4-7 cm and more than 7 cm, laparoscopic radical surgery has surpassed the number of open surgeries. Open surgery is advocated for T3-T4 tumors (combined with renal vein vena cava carcinoma thrombosis, tumor invasion of the adrenal gland, and tumor invasion of surrounding organs) and renal tumors requiring extensive lymph node dissection intraoperatively. In conclusion, for stage T1-T2 kidney cancer, laparoscopic surgery is less invasive, faster recovery and better long-term results; laparoscopic surgery has begun to replace traditional open surgery gradually in large medical centers. Of course, for each patient, the suitability of laparoscopic surgery depends not only on the size and location of the tumor, but also on the patient's age, physical condition, severity of comorbidities, experience of the operator and other comprehensive factors. Therefore, the treatment of kidney tumor needs to be individualized to choose the most suitable treatment modality.