Intellectual, psychomotor and speech development of 50 children born to mothers with epilepsy were studied. The sample has been stratified into 2 subgroups: children aged from 6 months to 4 years and children aged from 4 to 16 years. This group included 4 (8%) children with children absence epilepsy, juvenile myoclonic and unclassified epilepsy; one patient had a diagnosis of epileptic encephalopathy without epileptic seizures. Video-EEG monitoring revealed the epileptiform activity on EEG in 9 (18%) children from subgroup 2, four of them suffered from epilepsy. The subclinical epileptiform activity on EEG was observed in 5 (10%) children. The Wechsler test showed that general IQ scores were low (<95%) in 4 (20%) children of this subgroup. No significant difference was found in the performance on the Bayley-III scales between children from subgroup 1 and children born to healthy mothers (controls) though the scores on the fine motor scale and speech development scale were lower in 3 (10%) and 5 (16%) children of the index group, respectively.