[Abstract] Objective To summarize our experience and operative techniques of transumbilical laparo-endoscopic single site for adnexal diseases. Methods 14 cases for adnexal diseases were performed from July 2011 toAugusrt 2012．Results The operations were successful, while no case turned to conventional laproscopy. The operation time was from 20 to 120 min and the intraoperative blood losses were between 20 ml and 200 m1. None of the patients received blood transfusion or antalgic. The drainage was removed 2 days after operation and the postoperative hospital stays were 2～5 days. The patients were followed up for 3～12 months after operation and no incision hernia, wound infection and complications. Conclusion The technology of LESS which takes longer time is still in its infancy and immature, but LESS for adnexal diseases is a safe and effective method with less trauma. However, special instruments are needed for the procedure, and the suture and knotting are somewhat difficult．