The invention relates to a monitoring system for an electric vehicle regenerative braking and energy system comprehensive experimental device, which comprises a microprocessor unit, a storage battery bank, a super capacitor bank, a voltage sensor, a current sensor, a temperature sensor, a rotation speed and torque sensor, a motor, a motor controller, a magnetic powder brake, a tension controller, external storage equipment, a touch display, a filter circuit, an acceleration pedal module, a brake pedal module and an acousto-optic alarm circuit. The monitoring system provided by the invention is used for detecting various operating parameters of the electric vehicle regenerative braking and energy system comprehensive experimental device, carrying out analysis and calculation on the detected data, and controlling the electric vehicle regenerative braking and energy system comprehensive experimental device according to an analysis result.