Objective：To explore the safety and feasibility of Da Vinci robot-assisted laparoendoscopic single-site（LESS） in the com－plete staging of endometrial cancer. Methods：Clinical data of nine cases of early stage endometrial cancer complete staged surgery under the LESS assisted by Da Vinci robotic surgery system from February to September 2019 in the Department of Gynecology of The First Affiliated Hospital of Army Medical University were retrospectively analyzed. Results：Nine cases of endometrial cancer were treated with total fascial hysterectomy + bilateral appendectomy + class Ⅱ pelvic lymphadenectomy，and all operations were successful. Among the nine patients，five were grade Ⅰ and four were grade Ⅱ according to the histological grade of FIGO before surgery；the operation time was （251.67±78.32） min，the intraoperative blood loss was （261.11±92.80） mL，the time to get out of bed was （16.00±2.66） h，urinary tube removal time was （20.00±1.58） h，anal exhaust time was （21.56±4.53） h，drainage tube removal time was （27.22±17.87） h and postoperative hospital stay was （4.44±0.53） d. All patients had no intraoperative and postoperative complications. in Eight cases in IA staging and one case in IB stage（complementary brachytherapy） in postoperative clinicopathologi－cal staging. After follow-up of one month，no dehiscence at the upper end of vagina occurred and the umbilical incision recovered well. Conclusion：Physicians with experienced robotic surgery system and single-hole laparoscopic surgery can implement safely Da Vinci robotic surgery system to assist single-hole laparoscopic endometrial cancer in all stages.