Compared with the prior art, the invention provides a motor parameter control system and a motor parameter control method, comprising a forward processing module for linearly processing a control signal according to the parameters; Control object module, Includes DAC digital-to-analog converters. an amplifier circuit and an ADC analog-to-digital converter, wherein the control signal processed by the forward processing module is subjected to power amplification by the DAC digital-to-analog converter, and the voltage vcm [n] and the current icm [n] at both ends of the motor are obtained throughthe ADC analog-to-digital converter; System identification module, includes an LMS adaptive filter, The error signal err [n] of the measured current icm [n] and the predicted current icp [n] is filtered in the LMS adaptive filter by the least mean square filter, the iterative result is fed back to the forward processing module, and the feedback result is applied to the next data acquisition and parameter calculation. The motor parameter control system provided by the invention can solve the common difficulties in the actual measurement operation, simplify the steps, facilitate the measurementand ensure the accuracy of the measurement.