How to prevent recurrence after cerebral infarction is mainly dealt with in the following aspects: first, according to the cause of the disease, long-term oral anti-platelet aggregation or anticoagulant drugs, such as aspirin, clopidogrel, warfarin, etc.; the second one, plaque stabilizing drugs, such as atorvastatin; the third one, if the patient has high blood pressure, diabetes, he or she needs to carry out blood glucose and blood pressure monitoring, and control the blood glucose and blood pressure at the normal level; the fourth one, if the head and neck CTA suggests that there is intracranial stenosis, the patient also needs to carry out endovascular stenting. Fourth, if the head and neck CTA suggests that there is intracranial vascular stenosis, patients also need long-term oral statin drugs, and if there is severe stenosis, endovascular stenting is needed. Therefore, if the prevention of recurrence after cerebral infarction is mainly based on the above aspects, and at the same time, if the patient has a large amount of long-term smoking and drinking, he should pay attention to quit smoking and drinking.