There is a problem of double end data asynchrony and pseudo-root identification in the fault location of non whole journey double circuit line on the same pole. To solve this problem, first, the fault section is determined using the positive and negative phase characteristics of the fault section identification function group. To determine the fault section, a frequency domain forward current method based on electromagnetic time reversal is proposed for fault location. Then, the voltage and current on both sides of the fault section are decoupled and fast Fourier decomposition is performed. The current forward traveling wave of the power frequency component is extracted and its conjugate value is obtained. Finally, the current effective value at each assumed fault point is calculated. When the calculated effective value of current is the smallest, the corresponding point is the fault point. The proposed method does not need two terminal data synchronization. The simulation results show that there are no problems such as pseudo root identification and the algorithm is not affected by transition resistance, fault type or initial phase angle. Accurate fault location results can be obtained for either a double circuit line or single circuit line section. This work is supported by the Natural Science Basic Research Program of Shaanxi Province (No. 2021JM393).