Right coronary artery stenosis can be categorized into mild to moderate and severe, mild to moderate with drug treatment, severe consider intervention. 1. Mild-to-moderate stenosis: drug therapy is generally the mainstay of treatment, and the drugs that must be used include antiplatelet aggregation drugs, such as aspirin, and statins, such as Rosuvastatin, etc. If there is no contraindication to these two types of drugs, they need to be taken for a long time. If the patient does not have contraindications to these two types of drugs, they need to be taken for a long time and for life. Attention should also be paid to LDL, which should be controlled at less than 1.8 mmol/L. It can be combined with other lipid-lowering drugs, such as ezetimibe, for co-lowering lipid. The use of medication should be under the guidance of a doctor. 2. Severe stenosis: If the degree of stenosis is severe or more than 75% of the stenosis at the main site, interventional therapy or bypass surgery should be considered. After surgery, long-term medication is still needed. Blood pressure and blood sugar should be controlled. If there is any discomfort, it is recommended to go to the hospital in time and follow the doctor’s instructions for treatment.