Treatment of atrial tachycardia: I. It is necessary to find the cause of atrial tachycardia. Targeted treatment should be given to the triggering cause. Second, medication can be used, such as beta-blockers such as Betalucil, and antiarrhythmic drugs such as digitalis and amiodarone to treat. Special attention should be paid to how to apply what kind of antiarrhythmic drugs should be selected under the guidance of professional doctors, and must be applied on the basis of cardiac monitoring. Third, surgical treatment, catheter ablation and artificial pacemaker can be used. Patients must pay attention to rest, avoid emotional stress, etc., to ensure good living habits.