Once cardiovascular disease occurs, it has a certain rate of death and disability, so prevention is important for this disease. Secondary prevention of cardiovascular and cerebrovascular diseases means taking preventive and curative measures for patients who have already suffered from cerebral infarction and coronary heart disease, with the aim of improving symptoms, reducing the death and disability rates, and preventing the recurrence of cerebral infarction and coronary heart disease. There are two main measures for secondary prevention of cardiovascular and cerebrovascular diseases, one is to find and control risk factors; the other is reliable and continuous drug treatment. What does secondary prevention of cardiovascular and cerebrovascular disease include? First, improve lifestyle: quit smoking, limit alcohol, regular work and rest, avoid strain, low salt and low fat healthy diet, appropriate functional exercise; Second, find their own risk factors, drug intervention. Common risk factors are: diabetes, hypertension, hyperlipidemia, hyperuricemia, hyperhomocysteinemia, etc. Therefore, it is necessary to regularly monitor blood pressure, blood glucose, lipids and other conditions, adhere to drug therapy, avoid eating and stopping, regular outpatient follow-up, and adjust the amount of medication.