Junctional premature beats belong to one kind of arrhythmia, which refers to a heart beat that occurs outside the sinus node under special circumstances, and is called junctional premature beat because the pacing point is located at the junction of atria and ventricles. Occasional premature heart beats belong to normal physiological premature beats, if they occur frequently and are accompanied by organic diseases, they are pathologic premature beats. Pathologic premature beats belong to cardiac arrhythmias, which are more likely to cause myocardial ischemia, hypoxia, and even induce angina pectoris and other symptoms. Most premature beats without organic heart disease do not need special treatment. Symptomatic people should be relieved of worries, by the tension of over-emotional excitement or exercise-induced premature beats can be used sedatives such as diazepam, and beta-blockers such as metoprolol and so on. For those with frequent attacks, obvious symptoms or organic heart disease, it is advisable to find out the causes and triggers of premature beats as early as possible, and at the same time correctly identify their potential fatal possibilities, and actively treat the causes of the disease and symptomatic treatment. If symptoms such as palpitations, chest tightness, or even chest pain occur and continue without improvement, it is necessary to go to the hospital in time for the next treatment under the guidance of a cardiologist.