Central nervous system involvement is not an uncommon manifestation of dengue virus infection, but encephalitis is a rare entity. We report the case of a 5-year-old girl with fever and convulsions. She developed coma and shock during the high fever stage without abnormal bleeding.Treatment was supportive and symptomatic. The shock was poorly controlled. High fever persisted for 7.5 days then she expired. Cerebrospinal fluid (CSF) and blood dengue-IgM antibody showed dengue infection.