Objective To explore the electroencephalogram (EEG)features and related factors of children with febrile convulsion (FC).Methods The clinical and EEG data of 168 FC children were retrospectively analyzed.Results Of 168 children with FC,the initial issuance of 147 patients aged 0.5 -3 years old (87.30%),>3 years was 21 cases (11.10%),3 -year -old children within the age of multiple febrile seizures;the abnormal rate of EEG≤3 years old febrile seizures was 25.20%,>3 years old abnormal rate was 75.00%,indicated that with age increased,higher rate of EEG abnormalities;abnormal rate of EEG in children ≥ 38.5℃ was 26.20%,EEG abnormal rate in children <38.5℃ was 66.00%,that was easy to cause convulsions when low heat.These were significantly different between the two groups (P <0.01).Abnormal EEG rate of attacks 1 -3 times was 37.91%,>3 times the EEG abnormality was 64.88%(P <0.05),indicated that repeated seizures,the likelihood of cerebral injury larger. Conclusion EEG abnormality rate is related with clinical features of the FC;FC EEG in children should be regular inspections to closely follow up observation of disease prognosis.