The scary thing about diabetes is the various complications it causes, and about 80% of all diabetes-related deaths are related to cardiovascular disease, which has become a major complication and the leading cause of death in people with diabetes. Therefore, it is particularly important to prevent and treat cardiovascular disease in diabetic patients. The metabolic disorders caused by type 2 diabetes cover almost all risk factors associated with cardiovascular disease, such as hyperglycemia, dyslipidemia, hypertension, hyperviscosity, hypercoagulability, hyperinsulinemia, etc., any of which can be an independent risk factor for cardiovascular disease. Cardiovascular complications of diabetes include coronary heart disease, stroke, peripheral arterial disease, nephropathy, retinopathy, neuropathy, and cardiomyopathy. Compared with non-diabetic patients, the incidence of heart disease is two to four times higher in diabetic patients, and it develops early and rapidly. Among diabetic patients, hypertension combined with diabetes and diabetes combined with coronary heart disease are two groups of people who should be more vigilant about cardiovascular risk and double the “heart” protection. Patients with diabetes should lower their blood pressure to meet the target in order to minimize the overall risk of cardiovascular morbidity and mortality. The recommended blood pressure control target is <130/80mmHg. If their urinary protein excretion reaches 1g/24 hours, blood pressure control should be less than 125/75mmHg. Glucose patients should note that they should not only check their fasting blood glucose when visiting the doctor, but also try to control the most common '6 highs', i.e. high blood glucose, high blood lipids, high blood pressure, high blood viscosity and high blood pressure. , high blood viscosity, high blood clotting status, hyperinsulinemia, etc. It is advisable to have a comprehensive examination once a year, including electrocardiogram, electroencephalogram, fundus examination, microprotein examination of urine and examination of lower limb vascular lesions.