The invention discloses an
atrial fibrillation distinguishing method. The
atrial fibrillation distinguishing method comprises the following steps that original electrocardiogram data are subjected towave feature point positioning, the R-wave position and the morphological classification of a QRS composite wave are given, and
RR interval information of continuous 50 or more supraventricular pulsation is distinguished; from the aspect of geometric distribution characteristics of a Lorentz scatter diagram, three characteristic data of aggregation measurement,
diagonal area domination measurementand off-
diagonal area linear dependence measurement are generated; and the characteristic data are synthesized, and whether
atrial fibrillation occurs or not is judged according to a threshold valuemethod. According to the atrial
fibrillation distinguishing method, atrial
fibrillation distinguishing is conducted based on the geometric distribution characteristics of the Lorentz scatter diagram of the ventricular
RR interval, and a doctor can be effectively assisted to distinguish.