Purpose : The purpose of this study is to evaluate the CT features and pathogenesis of the electric brain injuries. Meterials and Methods: We reviewed the CT scans of 3patients injured by high-voltage electricity. We evaluated the findings early and delayed periods in each patients. Results: The early CT findings were diffuse brain edema, scalp swelling, and focal hemorrhagic contusion. The findings of delayed period were cerebral infarction, pneumocephalus, brain abscess, and pneumatocele. Conclusion: CT was useful to correlate the pathogenesis and variable features of electric brain injuries.