Objective:To study the indications, methods and effect of surgical treatment for obstructive sleep apnea hypopnea syndrome（OSAHS）in children. Methods:Clinical data of 240 children suffering from OSAHS and treated surgically was analyzed retrospectively. Of them, tonsillectomy plus adenoidectomy was applied to 214 cases, tonsillectomy to 15 and adenoidectomy to 11. Results:All the patients had been followed up for at least 6 months postoperatively. 175 cases (72.91％) were cured, 50 cases (20.83％) got improved and 15 cases (6.25％) were ineffective. As for the surgical complications, odontoseisis of primary teeth occurred in 11 cases while odontoptosis of primary teeth in 3. Conclusions:Adenoidectomy plus tonsillectomy is effective for the treatment of pediatric OSAHS.