In radiofrequency catheter ablation of idiopathic ventricular arrhythmias, catheters are routinely sent into the heart through femoral arteries or femoral veins. But once femoral vessels are not suitable for puncture and approach, transradial artery access becomes the choice. Here, we report the case of a 73-year-old man with frequent premature ventricular contractions and severe vascular disease who successfully received radiofrequency catheter ablation through radial artery access.