How long a 50-year-old coronary artery disease patient can live depends mainly on the degree of coronary artery disease, whether to accept scientific and standardized treatment and other factors, individual differences are large, and cannot be generalized. If the patient’s condition is more serious, there has been an acute infarction, old infarction, cardiac insufficiency, then the 5-year survival rate is relatively low; if it is simple coronary artery stenosis, did not cause infarction, heart failure and other complications, in the active control of risk factors, regular use of coronary artery disease secondary prevention of drugs, the patient’s symptoms can be improved, and generally will not shorten the life expectancy; even if the patient has been a more serious narrowing of the coronary artery, but if you can actively perform interventional therapy or bypass grafting to perfect the coronary artery disease. Even if the patient has serious stenosis, life expectancy will not be affected if the patient can actively undergo interventional therapy or bypass therapy to improve blood flow reconstruction and cooperate with medication. Coronary artery disease patients at the age of 50 should actively adjust their lifestyles, pay attention to the control of risk factors, quit smoking and drinking, do not stay up late, do not get tired, pay more attention to diet and rest, usually will not affect life expectancy.