The causes of fast pulse are physiological on the one hand and pathologic on the other. Physiological factors are mainly seen in excessive emotional fluctuations, too nervous, too much exercise, running and jumping and other strenuous exercise, usually will soon recover, will not cause obvious symptoms, do not need special treatment. If it is caused by pathological factors, most commonly seen in atrial fibrillation, arrhythmia, sinus tachycardia, supraventricular tachycardia, etc., at this time, we should improve the electrocardiogram examination in a timely manner, and actively accept the treatment, in order to prevent missing the best time for treatment, and irreversible consequences. At the same time, it is necessary to strictly control a low-salt, low-fat diet to reduce the burden on the cardiac circulation.