Objective To explore the optimal scheme for the treatment of adenoid hypertrophy in children via summarization of clinical experience of endoscopic adenoidectomy with three different kinds of surgical methods. Methods From June 2009 to Oct 2011, 1148 children with adenoid hypertrophy received endoscopic adenoidectomy under general anaesthesia. Of them, low temperature plasma ablation was applied to 368 cases, Medtronic power system via oral approach was applied to 677, and Medtronic power system via nasal approach to 103 cases. Results After operation, 368 patients receiving low temperature plasma adenoidectomy had no obvious pain and postoperative bleeding, and their feeding wasn't affected. All the cases treated with Medtronic power system via oral approach had obvious pain, and postoperative bleeding occurred in 7 of them (1.03%). As for the adenoidectomy with Medtronic power system via nasal approach, the operation time was long with difficulty of manipulation and postoperative nasal packing. Conclusion For adenoid hypertrophy in children, endoscopic adenoidectomy via oral approach with either Medtronic power system or low temperature plasma ablation is commendable with minimal invasion. According to my experience, the latter is predisposed.