How long a person can live with a pacemaker depends mainly on the patient’s age and the presence of other diseases. Even if the pacemaker runs out of power, the pacemaker can be replaced surgically. Most patients with pacemakers survive for more than 5 years. Pacemakers are effective in restoring the patient’s normal heart rate and prolonging life. If the patient does not have a combination of coronary artery disease and other underlying conditions, then a pacemaker can be a good solution to the problem of heart pacing and allow the patient to return to a normal life. However, if the patient is combined with other diseases, such as cerebrovascular disease, coronary heart disease, cancer, etc., he/she is likely to die because of other diseases, and the survival time is not easy to estimate. Generally, the life span of a pacemaker is about 8 years. If the pacemaker battery runs out, the patient can consult the cardiology department and have the pacemaker replaced under the guidance of a doctor. After implantation of the pacemaker, patients should follow the doctor’s advice and have regular checkups to ensure that the pacemaker is working effectively.