Transformer factories only design differential protection current software phase compensation for three kinds of transformer wiring groups, namely YNd11, YNd1 and YNy12, and their combinations, Currently, There isn't differential protection current software phase compensation for other transformer wiring groups and combinations. Through analyzing the changing law between the d side current phase of YNd3, YNd7, YNd5, YNd9, YNd11 and YNd1 transformers, this paper proposes to change the transformer protection's external current circuit wiring to transfer the differential protection current phase compensation of YNd3, YNd7, YNd5, YNd9 wiring transformers to YNd11 or YNd1 wiring transformers. Then through reusing the existing transformer differential protection current software phase compensation, YNd3 , YNd7, YNd5, YNd9 and other wiring transformers differential protection current phase compensation can be achieved. Reality application shows that the scheme is correct.