Cerebral infarction is characterized by high incidence, high disability rate and easy recurrence, and some data show that more than 40% of survivors of cerebral infarction have the possibility of recurrence, and the more recurrences the higher the death rate and disability rate. However, there is no definite conclusion on whether and when patients will have recurrence, which is closely related to factors such as the cause of patients, whether they adhere to effective preventive treatment and their physical conditions. Effective preventive treatment measures for patients with cerebral infarction are an important means to reduce recurrence and mortality. Studies have shown that hypertension, smoking, diabetes, hyperlipidemia, atrial fibrillation, as well as obesity and excessive alcohol consumption are risk factors for the occurrence of cerebrovascular disease. Preventive treatment measures for cerebral infarction are to target these risk factors and to carry out secondary prevention treatment by controlling blood pressure, blood sugar, physical exercise and adding antiplatelet, anticoagulant and statin drugs to reduce the recurrence rate. In addition, if the patient’s cerebral infarction is caused by atherosclerosis of the large arteries, cerebral artery stenting or carotid endarterectomy can be performed according to the patient’s lesion to open the occluded vessels and prevent recurrence. For patients with cardiogenic embolism such as atrial fibrillation, we can also actively eradicate the primary cause to prevent the recurrence of cerebral infarction. In summary, the time when cerebral infarction recurs has individual differences and depends on the patient’s own etiology, condition and other factors. For patients with cerebral infarction, timely treatment, finding and eradicating the etiology, as well as adhering to standardized cerebrovascular disease prevention treatment is the key to reducing recurrence.