The care after coronary intervention needs to be considered in combination with the following points: 1. Stable coronary artery disease: pay attention to the presence of bleeding and hematoma and drink more water; 2. Stable angina: observe the presence of bleeding and hematoma in the first 20 hours, and subsequently observe the presence of angina, chest pain and arrhythmia, and pay attention to monitoring blood pressure. Drink more water; 3. Radial artery puncture: compression, short hemostasis time, no need for bed rest; 4. Femoral artery puncture: need to lie down for a long time to avoid hematoma; 5. Acute coronary syndrome: reduce exercise, keep bowel movement smooth, light diet, and take medication on time as prescribed by the doctor.