Cerebral infarction is now a geriatric disease in China, characterized by high mortality, recurrence and disability. Once a cerebral infarction occurs, the risk of recurrence is also greatly increased. Some reports show that the recurrence rate is about 15% 2 years after the initial cerebral infarction, and the recurrence rate of cerebral infarction can be up to 30% after 5 years, so how to effectively prevent the recurrence of cerebral infarction is the key to treatment. To prevent recurrence of cerebral infarction, the main thing is to actively control the risk factors of cerebral infarction such as hypertension, diabetes, hyperlipidemia, atrial fibrillation, atherosclerosis, etc. The usual lifestyle should be regular and orderly, avoid high-salt diet, avoid the intake of fatty meat and high-fat diet, and eat more light food.