Tumors of the central nervous system are the second most frequent neoplasm in children. In a review of 43 children with brain tumor under the age of 16 evaluated at a pediatric and neurosurgical department at Severance Hospital Yonsei University during a 61/2 year period, following results were obtained. 1. All 43 cases were diagnosed by pathological examination as well as brain CT scan. The sex ratio of male and female was equal. The age distribution was highest between 13-14 year of age and 7% of them were under 1 year of age. 2. There was a small preponderance of infratentorial tumors (51%) over supratentoral tumors (49%). 3. Among 43 verified brain tumors by pathological examination, glioma represented 75%, of which astrocytoma was the commonest neoplasm being 19 cases (45%) and remainder were medulloblastoma 10 cases (23%), choroid plexus droglioma 2 cases (5%), ependymoma 1case (2%). The rest were craniopharyngioma 6 cases (14%), choroid plexus papilloma 1 case (2%), neuroblastoma 2 cases (5%), pineal teratoma 1 case (2%), melanotic neuroectodermal turmor 1 case (2%). 4. The most common symptom was headache occuring 63% of the patients followed by vomiting, motor weakness, visual disturbance, gait distrubance, mental disturbance and seizure in order of trequency. Neurological signs showed positive Babinski sign, papilledema, cerebellar sign, 6th nerve palsy and facial weakness. 5. Plain skull X-ray changes were noted in 26 out of the 43 cases (61%). Those were suture separation of skull noted 35% of tumors followed in frequency by increased digital marking, sella changes and calcification. 6. In brain CT scan studies, the most common abnormal finding was solid mass shadow followed by cystic mass shadow, solid and cystic mass shadow. After contrast infusion, diffuse enhancement was the most common features. 7. 27 cases were treated by operation only, 15 by operation and radiotherapy, 1 by operation, radiation and chemotherapy. 8. Progonsis of brain tumor was very poor. 5 of 43 cases died within 1 month of diagnosis, 1 year survival rate was 19%, and 2 year survival rate was 16%. The survival rate was better in the group of patients in whom total or subtotal resection combined with radiotherapy was performed. 53% of cases were not able to follow-up or discharged anainst advice without proper treatment.