Cardiac angiography does not necessarily require stent placement, but is determined by the results of cardiac angiography and the patient’s wishes. If the cardiogram shows that the patient has normal coronary arteries with no stenosis or obstruction, stenting is not necessary. If the patient is shown to have mild stenosis in the coronary artery, the stenosis is near the proximal end, not a very important vessel, and the supply of myocardium is not extensive, medication is the treatment of choice. Only if the patient has more than 70% stenosis in the coronary artery, there is definite evidence of ischemia, and the stenosis site is important, stenting is considered. Stenting treatment opens the blood vessels, improves the blood supply to the patient’s myocardium, protects the patient’s heart and maintains the patient’s cardiac function role. However, long-term oral medication is needed, such as dual anti-treatment to keep the stent open, application of statin therapy to delay plaque progression, and application of ACEI, ARB, and β-blockers to reduce lesion progression, to better protect the heart and prolong the patient’s life.