Bradycardia is defined as a heart rate of <60 beats per minute, the cause of which needs to be clarified, and the choices according to the condition are no treatment, temporary observation, medication, and installation of a pacemaker. 1. No treatment: athletes, long-term exercise is generally seen in people with bradycardia, which is a normal physiological changes, due to increased contractility of the heart, ejection capacity, the heart rate slows down, generally no treatment. 2. Temporary observation: If the degree of bradycardia is mild, the heart rate is above 50 beats, there is no prolonged cardiac arrest and serious conduction block, there is no obvious dizziness, fainting, low blood pressure and other symptoms, then it can be temporarily observed. 3. Medication: If the patient has sinus node dysfunction with obvious symptoms such as black haze, fainting, weakness, etc., atropine can generally be used to increase the sinus node excitability and atrioventricular node conduction, and isoproterenol can stimulate the heart, accelerate the heart rate and improve the symptoms. 4. Installation of pacemaker: If there is severe bradycardia, obvious symptoms such as syncope, fatigue, low blood pressure, and the presence of prolonged sinus arrest or high atrioventricular block, it is usually necessary to implant a pacemaker at this time. If the patient has bradycardia, go to the cardiology department of the hospital in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.