Objective To analyze the surgical technique and success rate of endoscopic third ventriculostomy (ETV) in pediatric obstructive hydrocephalus.Methods A retrospective analysis of clinical data and treatment efficacy of 13 patients with pediatric obstructive hydrocephalus,admitted to and undergone ETV in our hospital fiom July 2008 to July 2014,was performed.All patients were confirmed by CT and MR imaging.Results Follow-up information for all patients was obtained every 6 months by telephone after operation.Re-check was performed in all patients by CT or MR imaging.Ten had signs of hydrocephalus greatly relieved or disappeared;3 were invalid,and ventriculoperitoneal shunt was then performed 3-12 months after ETV.Postoperative fever occurred in 2 children and epilepsy in one.No complications,such as cerebrospinal fluid leakage,bleeding,infection or nerve injury,were noted.Conclusion ETV in treatment of children with obstructive hydrocephalus is safe and effective,enjoying few complications.