Abstract: Objective : Cerebral Infarction is a common disease which threatens humans health seriously so that it should be diagnosed in the early phase in order to decide proper therapy. Methods : Medical Image Diagnosis of Acute Cerebral Results : Infarction was evaluated by ways of reviewing the related literature both from China and abroad and observing clinical practices. Conclusio n: Multi-helix CT and functional MRI were considered at present as the best method to diagnose Acute Cerebral Infarction.