Early cardiac repolarization is not considered to be episodic premature beats, and they are completely different concepts. Early repolarization belongs to a kind of cardiac electrical activity changes, the main electrocardiogram change is the repolarization advancement, accompanied by ST-segment elevation. Early repolarization can be seen in the normal population, more common in young people, some patients may have myocardial ischemia, but also can be seen in patients with acute myocardial infarction. Episodic premature beats belong to a kind of arrhythmia, is the heart by the sinus node other than the stimulation of the abnormal heart beat, will interfere with the normal rhythm of the heart, most patients may not have obvious symptoms, some patients may have a sense of heartbeat intermittent. Most patients with early repolarization and episodic premature beats do not need special treatment, and those with obvious symptoms should go to the hospital in time and be treated under the guidance of a physician.