This paper calibrated dynamic pressure sensor through a step pressure generator. In this study, the model of the dynamic pressure sensor system is constructed, and its step response is also derived. By analyzing the relation between the characteristics of the step response and the calibrated parameters, the method to identify the calibrated parameters is then proposed. Finally, the experiments of dynamic pressure sensor calibration are conducted, and the parameters need to be calibrated are all successfully obtained. Our laboratory has constructed the equipment and the method to calibrate dynamic pressure sensors, and will provide the calibration services in the future.