It has been more than ten years since laparoscopic partial nephrectomy was first used in 1992. With the concept of minimally invasive surgery gaining popularity, this surgical method has been promoted in recent years and its scope of application is wider than before. The reason why we advocate partial nephrectomy is that we have to protect the kidney function as much as possible under the premise of complete removal of tumor in order to minimize the patient’s pain; and the reason why we advocate laparoscopic surgery is that compared with open surgery, the advantages of laparoscopic surgery are: less damage (small hole of about 1cm), less bleeding, aesthetics, and shorter hospitalization time; the key is that after laparoscopic surgery The key is that the results after laparoscopic surgery are no different from those of traditional open surgery. Indications for laparoscopic partial nephrectomy: 1. absolute indications: isolated renal cancer, bilateral renal cancer, contralateral renal insufficiency or non-functioning kidney, and patients with azotemia, which may lead to the need for dialysis treatment after total nephrectomy, are also considered as absolute indications for LPN; 2. relative indications (can be considered): tumor with other renal diseases (diabetes, hypertension, other atherosclerotic vascular diseases) and 3. Size and location of renal tumor: Nowadays, laparoscopic kidney preservation surgery can be considered for exophytic tumors under 7cm at home and abroad. For other sizes or locations of tumors, it depends on the surgical experience and skills of the surgeon.