This educational video explains the principles and surgical techniques of laparoscopic uterine artery ligation in gynecologic endoscopic surgery. Beginning with a review of pelvic anatomy, it demonstrates safe retroperitoneal dissection and highlights the close relationship between the uterine artery and the ureter. Multiple approaches for identifying and ligating the uterine artery are compared, with practical tips for avoiding complications. Clinical applications in laparoscopic myomectomy and fertility-preserving surgery are also discussed. The video concludes with the use of visual vasopressin injection technology to further improve surgical safety and reduce blood loss. It is an excellent learning resource for gynecologic laparoscopic surgeons seeking to master pelvic vascular anatomy and advanced hemostatic techniques.