Bundle branch regression ventricular tachycardia is relatively rare and is caused by the formation of a regression between the right and left bundle branches within the ventricle. During an episode of ventricular tachycardia, the electrocardiogram takes the form of left bundle branch block or right bundle branch block, with the former being more common. Under normal circumstances, the right and left bundle branches are the normal conduction bundles of the human heart and do not produce folding, but when conduction block occurs in one of the bundle branches, the velocity of the electrical impulses of the two bundle branches becomes different and folding may be formed. Therefore, patients with bundle branch regurgitation ventricular tachycardia often show bundle branch conduction block during sinus rhythm, with left bundle branch block being the most common (and incomplete left bundle branch block being the most common). The presence of monomorphic ventricular tachycardia in patients with valvular heart disease and cardiomyopathy requires consideration of the possibility of bundle branch regurgitation ventricular tachycardia. Patients with bundle branch regurgitant ventricular tachycardia often have significant cardiac insufficiency, and the heart rate is usually very fast (average 215 beats per minute) during the onset of ventricular tachycardia, and patients often experience syncope or cardiac arrest. Ablation of bundle-branch folding ventricular tachycardia is easy, and the target of ablation is the right bundle branch in the right ventricle. The success rate of ablation therapy can be almost 100% and therefore can be the treatment of choice for bundle branch folding ventricular tachycardia. After ablation of the right bundle branch, together with the possible pre-existing left bundle branch block, atrioventricular conduction function may be further impaired and a pacemaker should be implanted after ablation if it is indicated for pacemaker implantation. In some patients, especially after myocardial infarction, scar-associated ventricular tachycardia may also be present, and in some patients with severe clinical manifestations of ventricular tachycardia and significantly reduced cardiac function, simultaneous implantation of an ICD may be considered to reduce mortality; ablation is then used to reduce the number of ICD discharges due to bundle-branch refractory ventricular tachycardia.