There are many patients who think that the heart vessel has been bypassed, so they can be the same as normal people and don’t need to take medicine. In fact, the bridge vessel is different from the healthy vessel, it is only relatively smooth, using artery (such as radial artery, internal mammary artery) as the bypass vessel, the 5-year smoothness rate is 90%, using vein (such as saphenous vein), the 5-year smoothness rate is 80%, and the smoothness rate is not only related to the anastomosis technology, bridge vessel quality, but also related to the patient’s concomitant diseases. Therefore, patients should still take their medications regularly after surgery and actively treat the primary factors causing coronary artery disease. Coronary artery bypass grafting is a major operation for the patient, which bears a great risk, not only experiencing physical pain, but also a heavy mental burden, and many patients still have palpitations after the operation, and go home is cautious, do not go home, and are too nervous. Nurses should guide patients to establish a healthy lifestyle after surgery, maintain a good state of mind, keep emotional stability, do not be overjoyed, guide patients to treat the disease with a positive and optimistic attitude, and family members should try to establish a good and relaxed living environment for patients. Diet is a correctable risk factor for coronary heart disease, therefore, patients after coronary artery bypass grafting should pay attention to the diet. 1.Protein: pay attention to the supplement of high quality protein, ensure 1 egg, 50g of lean meat, 50g of fish and appropriate amount of soy products every day. 2, lipids: high blood lipids cause the patient’s blood to be sticky, forming arterial plaque and causing atherosclerosis, so the intake of fat and cholesterol should be strictly controlled. Try not to choose fatty meat, animal oil, chocolate and other foods, and choose vegetable oil. Eat more fish, which contains unsaturated fatty acids and has the effect of preventing atherosclerosis. In addition, snapper, garlic, kelp, fresh milk, red pepper can lower cholesterol, while animal offal, brain, egg yolk, fish roe, etc. should be consumed sparingly, its cholesterol content is high. 3, vitamins and fiber: fruits and vegetables are rich in vitamins, potassium, magnesium, these substances can maintain the nutrition of the heart muscle and lipid metabolism, vitamins can reduce the absorption of cholesterol in the intestine, which is conducive to the prevention of coronary heart disease, but also to prevent constipation. The main sources of food fiber are coarse grains, celery, bean sprouts, strawberries, pineapple, rice bran, etc. 4, other: diet should be a small number of meals, avoid overfull, do not drink strong tea, drinks containing coffee. Avoid flatulent food such as raw radish, dry beans, so as not to affect the heart activity with intestinal flatulence. In terms of alcohol consumption, a small amount of alcohol can appropriately increase blood circulation, which is beneficial to the smooth flow of bridge vessels, and those who do not drink alcohol before surgery may not need to drink alcohol. Appropriate exercise after surgery is beneficial to the patency of the bridge vessels, increasing myocardial blood volume and improving myocardial blood supply and reserve power. Appropriate exercise can also reduce patients’ depressive symptoms and maintain a good mood. Patients should choose exercise according to their actual situation, aerobic exercise is appropriate, such as jogging, walking, tai chi, cycling, etc., the time is generally 20-30min, after the activity to increase the heart rate of 10%-20% of the original heart rate is appropriate. After the operation, you should go to the hospital regularly for review, which includes heart sound auscultation, chest X-ray, electrocardiogram and vascular ultrasound. If there are palpitations, syncope and other indications of maladjustment, you should go to the hospital immediately.