Hypertension and diabetes, both of which often occur together, have a prevalence of hypertension in the diabetic population in China of about 40% to 55%, similar to that of developed countries (40%-60%). Hypertensive patients often have manifestations of metabolic syndrome: insulin resistance, central obesity and dyslipidemia, and these subjects are more likely to develop diabetes. The risk of diabetes is higher in hypertensive patients than in non-hypertensive people, and according to the data from several large hypertension intervention trials, the prevalence of diabetes in hypertensive people is 4%-36%, with a weighted average of 18%. Hazards: Hypertension in type 1 diabetes predicts the development of diabetic nephropathy, which is renal hypertension. hypertension in type 2 diabetes often occurs before the diagnosis of diabetes and is part of the metabolic syndrome along with blood glucose abnormalities; it can also develop at the time of or after the diagnosis of diabetes. As with hyperglycemia, hypertension is an important risk factor for cardiovascular and microvascular complications of diabetes mellitus. The cardiovascular risk of diabetes combined with hypertension is twice that of hypertension in non-diabetic patients. Blood pressure ≥120/70 mmHg is consistently associated with diabetic cardiovascular events and death. Prevention and treatment: The UK Prospective Study of Diabetes (UKPDS) showed that for every 10 mmHg reduction in systolic blood pressure, the incidence of any diabetes-related complications, death, myocardial infarction, and microvascular complications could be reduced by more than 10%; the benefits of blood pressure-lowering therapy were better for microvascular than for macrovascular complications. Some studies have shown that antihypertensive therapy can reduce cardiovascular risk in diabetes by up to 74%; multiple large studies have also confirmed that blood pressure-lowering therapy is better for diabetics than for non-diabetics. However, at the same time, the effect of western medicine alone in lowering blood pressure is not ideal for a significant proportion of people. Therefore, the use of a combination of Western and Chinese medicine to adjust blood pressure can be of great significance to the diabetic population. For patients with hypertension and diabetes, it is necessary to carry out Chinese herbal medicine and intervention. Patients should not believe in some so-called “magic medicine for lowering sugar” at home, but must be handled correctly under the guidance of professional medical personnel, because taking random hypoglycemic and hypotensive drugs has the risk of causing low blood pressure and low blood sugar, both of which can be fatal to the human body. The situation may be fatal to the human body, so it needs a doctor to carry out a comprehensive conditioning. Chinese herbal medicine can be prescribed according to each patient’s unique constitution, so that each person’s plan is the most suitable for him or her. The theory of TCM is about holistic treatment and evidence-based therapy. The doctor will understand the patient’s physical state and where the overall disease mechanism is now by looking, smelling, and treating the patient, so that comprehensive conditioning can be carried out. This is the only way to take a holistic approach and protect the patient’s health.