The treatment of arrhythmias should be based on the symptoms of the patients with arrhythmias, the type of arrhythmias, and their impact on hemodynamics. Control of arrhythmias during episodes involves removing the cause and focus of the disease and preventing recurrence, which can be divided into non-pharmacological and pharmacological treatments. Non-pharmacological treatments include methods such as eyeball compression, carotid sinus massage, pinching the nose to exhale forcefully and hold breath to reflexively excite the vagus nerve, along with electrical treatments like electrical cardioversion, defibrillation, pacemaker implantation, and ablation surgery. There are mainly four types of drugs used: sodium channel blockers; beta-adrenergic blockers; drugs selectively prolonging the repolarization process, such as amiodarone; and calcium channel blockers. However, long-term use of these antiarrhythmic drugs can have varying degrees of side effects, and severe cases can cause ventricular arrhythmias or cardiac conduction block which can be fatal. Therefore, in clinical application, it is essential to strictly control the indications, monitor for adverse reactions, and rigorously follow the doctor's orders.