Abstract: Atrial fibrillation (AF) is the most common supraventricular arrhythmia, characterized by high morbidity and mortality.The mechanism of AF is not very clear, and there is still a lack of effective radical treatments.Therefore, the prevention of AF is particularly important.Different dietary patterns are closely related to the occurrence and development of AF.This study reviewed the relationships of different dietary factors such as the Mediterranean diet, the Dietary Approaches to Stop Hypertension (DASH diet), fish and ω-3 polyunsaturated fatty acids, olive oil, nuts, caffeine, chocolate, alcohol, fried food and salt with the occurrence of AF, and explored its mechanism of action.