Radiofrequency ablation does not treat pulmonary vein occlusion per se, but can be used to treat conditions such as arrhythmias. Pulmonary venous occlusion is a progressive occlusion of the small pulmonary veins, which eventually leads to pulmonary hypertension. Treatment options include medication, surgery, and daily care. Radiofrequency ablation is the treatment of tachyarrhythmia by inserting an electrode catheter into the heart through the femoral artery, internal jugular vein, and subclavian vein routes, utilizing the electro-thermal effect to dry out and necrose the cardiac muscle cells. In patients with pulmonary venous occlusion, it is generally necessary to limit the patient’s activities, avoid the use of drugs that aggravate pulmonary hypertension, and oxygen can be inhaled to reduce the deterioration of pulmonary hypertension. There is obvious pulmonary edema, can apply diuretics, such as furosemide, etc.; accompanied by abnormal coagulation function, can apply warfarin, etc.. Lung transplantation can be considered if necessary. It is recommended that patients seek timely medical treatment and listen to the advice of specialized doctors.