High blood pressure can drink black coffee, but in moderation. Dietary advice for hypertensive patients is based on low salt, low fat, low cholesterol, black coffee does not contain sugar and very little lipid content, which has the effect of refreshing, diuretic, etc., but the caffeine contained in black coffee may make hypertensive patients with higher blood pressure and faster heart rate. Therefore, hypertensive patients can drink black coffee, but in moderation. Hypertensive patients should take medication and monitor their blood pressure as prescribed by their doctors, eat more fresh fruits and vegetables, supplement protein and dietary fiber, and try to eat as little as possible or not eat greasy, pickled, and high-sugar foods. In addition to this, hypertensive patients should maintain appropriate aerobic exercise to keep their blood pressure stable. Diets for hypertensive patients should be under the guidance of a doctor, and blood pressure should be monitored in a timely manner. If there are any major fluctuations or if you feel unwell, you should seek medical attention in a timely manner.