Tachycardia should be referred to as tachypnea. Physiological tachycardia generally does not require treatment, and pathologic tachycardia is often treated with drugs or surgery. Physiologic tachycardia, often caused by exercise, nervousness and other reasons for tachycardia, is a normal phenomenon, usually without treatment. If pathological tachycardia, often accompanied by dizziness, panic, palpitations and other obvious symptoms, it is recommended that early medical treatment. Pathologic tachycardia includes sinus tachycardia, atrial tachycardia, and ventricular tachycardia. Commonly used drugs for sinus tachycardia include β-blockers, such as sotalol, metoprolol, etc., which can reduce the heart rate, and it should be noted that the dose should be adjusted for patients with severe liver function impairment; non-dihydropyridine calcium channel blockers, such as diltiazem, verapamil, which may lead to swelling, headache, dizziness, and other adverse reactions with long-term use. Commonly used drugs for atrial tachycardia include beta-blockers, non-dihydropyridine calcium channel blockers, and the antiarrhythmic drug amiodarone. The use of amiodarone may cause adverse reactions such as hyperpigmentation, abnormal thyroid hormone levels, and diffuse interstitial lung disease. Commonly used medications for ventricular tachycardia include beta-blockers and amiodarone. For patients who do not respond well to medications, doctors, taking into account the patient’s condition, may use catheter ablation to treat the condition, which may cause complications such as cardiac perforation and atrioventricular block, but the incidence is extremely low. The same disease, the patient’s physical condition is different, different stages of the disease, the treatment method is different, if diagnosed with tachycardia, it is recommended to consult a doctor in time, to clarify the cause of the disease, to standardize the treatment, to reduce the adverse effects of the disease.