The retrospective study provides data about 82 patients of I-st year of life, which were treated in the Institute of Neurosurgery during the period from 1980 to 2004 years. Those patients represent 1,8% of the tumors of childhood seen in this unit. 80,5% of the tumors had supratentorial and 93% — neuroectodermal origin. The most common syndromes were vomiting, alteration of psychomotor development and macrocrania. Brain tumors during I-st year of life differ sufficiently from those of older children in presentation, localization and some morphological characteristics to be considered separately. Operative mortalities the surgical failure seems to be due to large tumors size and blood loss. Brain tumors at this age can be analyzed as intrauterine process or by heredity.