Inrush current is one of the main factors restricting the success rate of transformer differential protection. This paper proposes a new strategy for identifying the inrush current based on the Jarque-Bera coefficient. The overall morphology of the fault current and inrush current waveforms is analyzed. The difference in normality caused by the different sine degrees of the two waveforms is used. Combined with the advantages of the Jarque-Bera algorithm in the field of a normality test, the absolute value of the transformer differential current is processed to obtain the Jarque-Bera coefficient. Depending on the size of the coefficient, the appropriate threshold is selected to identify the inrush and fault differential currents. The differential current waveform of the transformer under various working conditions is simulated and tested. The comparison with the second harmonic braking scheme shows that the proposed method offers a clear working principle and good anti-interference performance, and can quickly and accurately identify the inrush current even when the Current Transformer (CT) is saturated. Finally, the correctness of this method is further proved by the analysis of field test wave data. This work is supported by the National Nature Science Foundation of China (No. 52077120).