The characteristics and advancement of the models of cerebral ischemia were explored, according to the characteristics of clinical symptoms affter the present commonly-used animal models of cerebral ischemia were compared and analyzed. The present cerebral ischemia models can be classified into two types,global cerebral ischemia and focal cerebral ischemia,which were accorded with cerebral infarction,acute cerebral ischemia,vascular dementia to some degrees. The model establishment methods varied, but the i...