Cardiac radiofrequency ablation is life threatening. Cardiac radiofrequency ablation is a precise, minimally invasive interventional procedure that uses high-frequency electrical currents to cauterize and necrose the heart muscle in abnormal conduction pathways to treat malignant arrhythmias. Cardiac radiofrequency ablation carries certain risks. Since cardiac radiofrequency ablation is an invasive operation, improper operation from the beginning of local arterial puncture to the end of the operation, and improper operation in either process, may lead to atrial perforation, hemorrhage, induced arrhythmia, pericardial effusion, and other life-threatening risks. Care and recovery after cardiac radiofrequency ablation is also very important, especially compression of the puncture site to stop bleeding. Bleeding needs to be monitored and medications should be changed on time to avoid infection.