Introduction: To compare the effect of a modified antegrade and retrograde double-J stenting techniques on stenting and operation time in patients who underwent laparoscopic or robotic pyeloplasty. Methods: A total of 74 patients undergoing transperitoneal laparoscopic or robotic pyeloplasty were enrolled into this study. The antegrade (Group 1) and retrograde (Group 2) techniques were compared for operation time, stenting time, complication, and reoperation rates. Results: There were 41 and 33 patients in Groups 1 and 2, respectively. Both groups were similar in terms of age, side, and gender distribution. The mean operation times were 122.4 and 139.7 min in Groups 1 and 2, respectively (p < 0.001). The stenting times were 2.39 and 14.15 min in Groups 1 and 2, respectively (p < 0.001). The reoperation and complication rates were 7.3 and 6%, respectively, and similar for both groups (p = 1). Conclusions: Our new technique significantly shortens the duration of laparoscopic and robotic pyeloplasty without compromising success and complication rates.