As the incidence of cerebrovascular disease increases,the incidence of white matter lesions (WMLs) and vascular cognitive impairment (VCI) also increases.Ischemic WMLs is directly related to VCI,especially non-dementia VCI.Early symptoms of non-dementia VCI are hidden and difficult to identify.About 50% of patients develop dementia.This article reviews the correlation between WMLs and VCI in terms of etiology,risk factors,pathogenesis and imaging manifestations.It provides scientific basis or ideas for clinical diagnosis and treatment for WMLs and VCI.