Preventive measures for transient cerebral ischemia need to be targeted at high-risk factors, as follows: 1, elderly patients: patients over 60 years of age can consult neurology or cerebrovascular specialists for cerebral blood-supplying arteries screening, to observe whether there is any narrowing of the blood vessels; 2, patients with high blood pressure: carotid artery ultrasound, cranial magnetic resonance or cerebral blood flow test TCD on a regular basis, to observe the existence of vascular stenosis; 3, diabetes mellitus or dyslipidaemia: regular cerebral blood-supplying arteries related to the inspection, to observe the existence of stenosis and plaque formation; 4, patients with atrial fibrillation: early treatment of atrial fibrillation, and long-term anticoagulant medication can be taken.