Background: Central nervous system (CNS) malformations represent important factor of morbidity and mortality in children. The aim of the study was to determine the frequency, type and clinical features of CNS malformations in children who were attended the outpatient clinic Methods: The study included 3280 patients complaining of different neurological disorders attended the outpatient clinic over 3 months. Congenital CNS malformations were diagnosed in 33 cases and they subjected to; clinical examination, EEG, MRI. Results: The study revealed; seizures in (58%), delayed milestones in (75%), limbs weakness in (36%), macrocephaly in (9%), microcephaly in (6%), dysmorphic features in (36%), limb deformity in (15%). Regarding type of malformations there were; (12%) lissencephaly, (9%) tuberous sclerosis, (12%) Dandy Walker, (9%) Arnold Chiari, (3%) polymicrogyria, (48%) corpus callosum malformations, (3%) holoprocencephaly, (6%) pachygiria, (3%) heterotopias, (3%) vermin hypoplasia, (6%) encehpalocele, (3%) anencephaly, (3%) cortical dysplasia with schizncephaly , and (3%) Sturge Weber syndrome. Conclusion: This study concluded that frequency of congenital CNS malformations is (1,006%), congenital CNS malformations should be suspected in any patients presenting with neurological symptoms especially during first year of life, and complete diagnosis depends on both clinical and MRI finding.