Ventricular premature beats (or ventricular premature contractions), abbreviated as VPCs, are very common arrhythmias in clinical practice, and occur in a wide range of populations, including normal healthy people and patients with various heart diseases. The clinical symptoms of ventricular premature beats vary greatly, ranging from no symptoms, mild palpitations and discomfort, to premature beats triggering malignant ventricular arrhythmias leading to syncope or blackouts, and there is no parallel relationship between clinical symptoms and prognosis. The clinical prognosis of ventricular premature beats in normal healthy people and patients with various heart diseases is different. Therefore, when dealing with ventricular premature beats, clinicians must base themselves on the patient himself, that is, what kind of premature beats need to be treated, how to standardize the treatment, and how to objectively evaluate the treatment effect is very important.