Coronary atherosclerosis is mainly seen in the middle-aged and elderly people, diet attention as follows: First, low salt and low fat diet, more fruits and vegetables rich in fiber and vitamins, reduce greasy and meat diet, reduce the intake of saturated fatty acids. Second, quit smoking and drinking alcohol, smoking and drinking alcohol can cause coronary atherosclerotic heart disease and hypertension, so middle-aged and elderly people with coronary atherosclerosis should quit smoking and drinking alcohol. Third, eat more vegetables and fruits, and appropriately increase the intake of unsaturated fatty acids, such as olive oil, to reduce blood lipids and blood pressure is beneficial to patients with coronary arteriosclerosis. Fourth, appropriate exercise, research shows that exercise can improve cardiac function, slow down the heart rate and reduce the incidence of coronary atherosclerosis. Asians are generally salt-sensitive, so the primary measure to control and delay coronary atherosclerosis is to control salt intake, that is, a low-salt diet. High-fat diet is also another major cause of coronary atherosclerosis, so it is necessary to control the intake of saturated fatty acids, and it is also very beneficial for patients with coronary atherosclerosis to consume more fruits and vegetables and to increase exercise appropriately.