Subcortical ischemic cerebrovascular disease (with ischemic vascular subcortical, SIVD) is a group to become the main causes, small in subcortical multiple lacunar infarction and cerebral white matter lesions as main brain damage of ischemic cerebrovascular disease, is a cause of vascular cognitive impairment (vascular cognitive resulted VCI), the most common SIVD can cause gait obstacles, such as Parkinson's appearance, all lose tonal gait gait, walking instability or without apparent cause of frequent fall, a study showed that abnormal gait might be early vascular This paper will SIVD gait obstacles in pathological mechanism, gait types, gait obstacles and cognitive impairment of the relationship, gait obstacles analysis and evaluation,