Introduction: The aim of the present study was to investigate the level of blood pressure in children with febrile convulsion (seizures) (FC). Materials and Methods: The present case-control study was carried out on 100 children aged 6 to 60 months referred to the emergency department. Children in the control group included children with symptoms other than FC and the case group had FC symptoms. Blood pressure was measured in these children and data analysis was conducted using SPSS ver. 19. Results: There is a significant difference between the two groups in terms of the declared percentiles (p= 0.001). That is, a total of 60%, 20% and 10% of the subjects in the FC group were in the 50-90, 90-95 and 95-99 percentiles, respectively. There was a significant difference between the two groups in terms of systolic blood pressure (SBP) and diastolic blood pressure(DBP) (p=0.001). The mean SBP and DBP values were higher in the FC group. Conclusion: SBP and DBP values increase in children with FC.