Abstract: Idiopathic normal pressure hydrocephalus (iNPH) is a syndrome characterized by the clinical triad of gait disturbance, dementia, urinary incontinence, with ventricular dilation and normal cerebrospinal fluid pressure (CSF), and these symptoms could be revered by CSF shunt surgery. However clinical symptoms will gradually deteriorate without surgical management. Ventriculoperitoneal shunt（VPS） is the most common surgical procedure. Prompt diagnosis and treatment can significantly improve the patient's condition. The prognosis is satisfied,if the patients diagnosed as iNPH are treated as early as possible.

Key words: Idiopathic normal pressure hydrocephalus (iNPH), surgical management, Ventriculoperitoneal shunt（VPS）