Abstract: The present disclosure provides a speed tracking control method and system for a heavy-haul train. According to the present disclosure, a multi-particle unit-displacement model of the train is established and a robust-adaptive active disturbance rejection control method is adopted, so that an error between an actual speed of the train and a target speed is minimized, an anti-interference capacity of the heavy-haul train is improved, and high-precision tracking control over the target speed of the train is realized.