Abstract: At present, many researches on nanosecond pulse current measurement sensors for pulsed power devices are available, however, most of the existing measurement probes for pulse current focus on the acquisition characteristics of high-frequency signals, and few measurement probes for broadband nanosecond-pulse current have an excellent response to both high-frequency and low-frequency signals. In this paper, a broadband current sensor using a hybrid integrator is designed based on a new circuit topology, and its working principle and cable matching mode are theoretically analyzed. The overall structure design of the current probe is introduced, and the influence of different parameters on the output waveform of the designed current probe is explored through step response experiments. The experimental results show that the integral resistance and sampling capacitance have a great influence on the time constant and low-frequency sensitivity. When the integral resistance increases, the probe output amplitude decreases, and the time constant increases. When the sampling capacitance decreases, the probe output signal amplitude increases and the time constant decreases. The sampling resistance has a great influence on the high-frequency sensitivity, and excessive resistance will cause overshoot distortion of the measuring signal wave front. In the actual parameter design, the above high and low-frequency sensitivity-related parameters can be adjusted according to the actual measurement requirements to meet the actual measurement requirements.