Febrile seizures are the most common forms of seizures in children with fever. A data from clinical and experimental studies suggest the potential role of immune generate products in their genesis. The balance between proinflammatory (IL-1β) and anti-inflammatory (IL-10) cytokines influences the regulation of infections and plays a role in the pathogenesis of febrile seizures. In existing literature, there is no research on the correlation between IL-1β and IL-10 levels as well as the ratio of IL-1β to IL-10 in estimating the risk of febrile seizures in seizure prone children aged between 3 months and 5 years. In this study, IL-1β, IL-10 levels and ratio of IL-1β to IL-10 in the risk of febrile seizures were investigated, and respondents were divided into three groups: febrile seizures, febrile without seizures and healthy children without histories of febrile seizure. This study has used A cross-sectional design, and each group had 17 co-respondents. IL-1β and IL-10 levels were measured by ELISA. Data were analyzed by SPSS 15. Findings showed there were significant differences between IL-1β and IL-10 as well as in the ratio of IL-1β to IL-10 between febrile seizure patients and healthy children. It was concluded that there were significant correlations between IL-1β and IL-10 levels as well as IL-1β to IL-10 ratios in estimating the risk of febrile seizures.