Background: Febrile seizure is the most common cause of convulsion encountered in pediatric practice. Majority of febrile convulsions occurred in first two years of life. The incidence is slightly higher in boys than in girls, but they tend to occur earlier in girls. Aim of the study: This aim of the study was to evaluate the disease pattern and laboratory profile of febrile convulsion among the children admitted in SWMC. Materials and methods: This cross-sectional study was done in Sylhet Women’s Medical College Hospital from February 2021 to January 2022. Total 174 children aged in between 0-7 years who were admitted in Pediatric department with the complaints of fever and convulsion were included in the study. Data was collected by expert physician with structured questionnaire containing demographic profile, history, clinical examination and laboratory profile. Data were analyzed by descriptive manual. Results: The results showed that, there were 25 (14.44%) children in age group of 0-2, 108 (62%) in age group of 3-5 and 41 (23.56%) in age group of 6-7 years. The number of male subjects were higher 91 (52%) than female 83 (47%) in the study. The most frequent type of seizure was GTCS which was found in 148 (85%) cases. Leukopenia was found in 92 (52.87%) cases which was the most frequent finding. The most frequent type of disease was upper respiratory tract infection 52 (29.88%) followed by pneumonia 46 (26.43%), gastroenteritis 32 (18.39%), urinary tract infection 32 (18.39%) and otitis media 12(6.89%). Conclusion: In our study most of the children were 3-5 years of age with male preponderance. Upper respiratory tract infection was found as common cause of febrile convulsion and leucopenia, raised CRP were identified.