This study is a single center, single blind, prospective randomized controlled trial. Patients undergoing robot assisted laparoscopic radical prostatectomy for prostate cancer were randomly divided into 1:1:1 groups, using lateral reconstruction, posterior reconstruction, or no reconstruction. Patients were followed up regularly after surgery and clinical data were collected, including daily use of urine pads, ICIQ-SF score, 24-hour urine leakage, I-QoL score, etc., to evaluate the improvement effect of lateral reconstruction on urinary control and the difference in effect between lateral reconstruction and posterior reconstruction, thereby improving the quality of life of prostate cancer patients after surgery.