Abstract: Objective  To explore clinical application of three-dimensional(3-D) digital reconstruction of pelvic anatomy in endoscopic surgery for gynecological benign tumors. 
Methods  A total of 80 patients with benign tumors that were treated by endoscopic surgery were enrolled, and in the control group, a retrospective analysis method was used to select 80 patients with gynecological benign tumors treated in our hospital. The patients in the control group underwent routine endoscopic surgery, while the patients in the observation group underwent endoscopic surgery on the basis of 3-D digital reconstruction of pelvic anatomy. The diagnosis rate, postoperative cure rate, duration of operation, incidence of complications, duration of hospitalization, blood loss, hospitalization expenses and patient compliance were compared between the two groups. 
Results  The diagnosis rate and cure rate in the observation group was higher than those in the control group(P＜0.05). The duration of operation and hospitalization, blood loss during operation and the probability of complications in the observation group were lower than those in the control group, and the compliance of the patients in the observation group was good(P＜0.05). 
Conclusion  The 3-D digital model of pelvic cavity, which can be used for preoperative evaluation and development of surgical plan of minimally invasive surgery and endoscopic surgery, can provide effective auxiliary means to shorten duration of operation, reduce blood loss and urinary system injury, and shorten duration of hospitalization, gradually ensuring the clinical guidance and assistance of core technology in digital medicine in clinical practice.

Key words: genital neoplasms, female, natural orifice endoscopic surgery, imaging, three-dimensional