There are two surgical approaches commonly used in robot-assisted laparoscopy nephron-sparing surgery:retroperitoneal and transperitoneal approaches, both with their own advantages and disadvantages. After analyzing the advantages and disadvantages, we are the first to use a combined retroperitoneal and transperitoneal approach for laparoscopy nephron-sparing surgery in our center. This paper compares the characteristics of the three surgical approaches, and discusses their indications according to the renal tumor characteristics for robot-assisted laparoscopic nephron-sparing surgery.