The heart beats hard during lunch break is the performance of tachycardia, physiological need not be dealt with, organic need to actively treat the primary pathology, including drug therapy, radiofrequency ablation, and so on. 1. Physiological tachycardia, this situation may be related to diet, mental stimulation and other factors, such as drinking more coffee, strong tea at noon, work in the morning is too tired, mental overstress and so on. In addition may also be neurosis, lunch break after waking up sympathetic over-excitement, tachycardia, quiet state can be improved on their own. 2. Organic tachycardia is associated with a number of diseases. The most common is arrhythmia, such as paroxysmal atrial fibrillation, frequent ventricular premature beats, paroxysmal supraventricular tachycardia and so on. A 24-hour ambulatory electrocardiogram is recommended to clarify the type of arrhythmia. If necessary, antiarrhythmic drugs should be used to treat the arrhythmia, and radiofrequency ablation can be considered for severe arrhythmias. In addition, some systemic diseases may also cause tachycardia, such as hyperthyroidism, moderate to severe anemia, electrolyte disorders and other systemic diseases may also cause tachycardia. It is necessary to carry out drug treatment for the primary disease, after removing the cause of the heart symptoms will improve. In conclusion, patients whose heart beats hard during lunch break and whose symptoms appear frequently are advised to go to the cardiology department as soon as possible, so as to clarify the cause of the disease and diagnose and treat it actively, and not to delay the disease.