There is no clear definition of the extent of coronary artery calcification that requires bypass surgery, and it needs to be determined according to the patient’s condition, in which the degree of coronary artery stenosis reaches more than 75% or patients with frequent angina attacks need to undergo bypass surgery in a timely manner. Coronary artery calcification refers to the endothelium of the coronary arteries appearing to be calcified and shiny on imaging due to the deposition of calcium ions. If calcification is a physiologic problem, then it is generally not a cause for concern. However, if there is also a narrowing of the coronary arteries, further testing is needed to determine if coronary artery bypass grafting is necessary. Generally, bypass surgery is recommended if the coronary artery stenosis is 75% or greater and there are complications such as myocardial ischemia or myocardial infarction. In addition, if the patient’s angina attacks frequently, and the degree is becoming more and more obvious, then it indicates the existence of more serious coronary heart disease, this time also need to be carried out as soon as possible under the guidance of the doctor bypass surgery. In normal times, the patient should actively cooperate with the doctor’s treatment, do not self-medication, and try to maintain an optimistic state of mind, so as to avoid deterioration of the condition.