During the emergency braking on the road with different left and right adhesion coefficients, the motorized wheel dump truck will emerge interferential yaw moment, leading to the dump truck side slip and deflection. Therefore, puts forward a kind of EBD(electronic brake force distribution) strategy of motorized wheel dump truck based on yaw moment control. The strategy adopts the parameter fuzzy self-tuning PID controller which can adjust the slip ratios of the left and right wheels of the dump truck respectively during the emergency braking according to the yaw velocity deviation value and realize the direct yaw moment control by the automatic brake force distribution of the left and right wheels. Simulation analysis shows that the system realizes the reasonable brake force distribution of the motorized wheel dump truck, and the maximum side slip distance decreases from 8.9 m to 0.72 m.