Abstract: In the postgraduate teaching of cardiology department, the atrial fi brillation ablation simulator was introduced, which was able to reconstruct the cardiac three dimensional model, illuminating theoretical mechanism in a simple and understandable way, to help postgraduates comprehend and master the cardiac anatomical structures. The new teaching strategy also provides virtual training opportunities for catheter manipulation, teaching in practical exercises, to promote the postgraduates' comprehension of ablation skills and accumulation of experiences. It has led to a pretty good teaching effect.