The invention relates to a three-phase three-column type Y/transformer winding current identification method under direct current disturbance, which is characterized by comprising the following stepsof: establishing a magnetic field model in a transformer, and calculating time domain inductance by utilizing an energy balance finite element method; substituting the calculated inductance parametersinto a circuit model, and realizing the identification of the transformer winding current through a time domain circuit differential equation and electromagnetic coupling iteration; and carrying outsimulation calculation on the no-load current of the transformer winding under different direct-current disturbances and summarizing laws. A modular dynamic simulation experiment platform is established to verify a simulation result, a basis is provided for judging the internal excitation saturation degree of the transformer in an AC/DC hybrid environment and guaranteeing safe and stable operationof the transformer, and the method has the advantages of being scientific, reasonable, real, effective, high in practical value and the like.