Abstract: A method of time domain calibration and data processing on pulsed current probe which is based on Rogowski coil is introduced. The result of time domain calibration using pulsed signal is compared with the frequency domain calibration result. A dynamic model of measurement system is established through system identification method according to low frequency distortion of the current probe. This method is also used to correct the distorted output signal of the probe. The validity of established model is verified by experimental data and the measurement system can be corrected into an ideal proportional system by designed compensating digital filter.