Renal artery sympathetic ablation can treat refractory hypertension. Sympathetic nerves play an important role in the regulation of blood pressure by modulating the renal circulation, altering the urinary and endocrine functions of the kidneys, which in turn affects the transport of water and electrolytes, and thus affects blood pressure. Renal artery sympathetic ablation utilizes percutaneous catheter technology to perform radiofrequency ablation in the lumen of the renal artery to destroy the afferent and efferent nerves around the renal artery, blocking the afferent and efferent signals and thereby lowering blood pressure. This method is less invasive and has a higher success rate, and has become the preferred method of eradicating tachyarrhythmia, while achieving a series of results in the clinical treatment of persistent hypertension. If the patient’s blood pressure is high, it is recommended to consult a doctor in time, clarify the cause of the disease with the help of the doctor, and carry out targeted treatment or therapy.