Heart rate 47 beats/min at night after stent surgery for heart attack can be temporarily observed, no symptoms without special treatment, if necessary, the examination of dynamic electrocardiogram. Heart rate 47 beats/min is lower than normal heart rate, patients who have a heart rate of 47 beats/min during sleep without any adverse symptoms do not need special treatment. If the heart rate is consistently slow during the waking state, an elective 24-hour ambulatory electrocardiogram is recommended to find out the patient’s total heart rate. If bradycardia persists and the patient has symptoms of chest tightness after activity, medications to increase the heart rate can be given appropriately, such as atropine, etc. Patients with severe bradycardia with symptoms should be considered for the possibility of pacemaker installation. Post-stenting bradycardia should be monitored, and patients with symptoms should communicate with their doctors in a timely manner and be treated under the guidance of their doctors.