To improve the control stability of mountain orchard transporter designed by South China Agricultural University, a power stabilization system with low cost was designed and installed. The system consists mainly of brake handle, electric push rod, electromagnetic valve, brake oil pump, and brake clamp etc. According to the control strategy, power independently control model is established in Simulink. Through the simulation analysis, the speed of uncontrolled power wheel equals the speed of controlled power wheel and vehicle driving force increases under steady state, to improve passing ability of the transporter under the changeable road condition. Furthermore, the adaptive fuzzy PID speed controller is joined to the system. The simulation results show that the stable response was started at 3.5 s for the difference between the longitudinal velocity of momentum wheel on both sides with the maximum absolute error of 0.422 2 and the minimum value of 0.004 7. Response to reach and maintain the final value error of plus or minus 5% within the shortest time of 3.0 s. Under the condition of the steady state (t→∞), the error is 0, increasing the system response speed and improving the accuracy and stability. The results of test in vehicle showed that the absolute error of controlled post–steady wheel speed range of 0.178 1–0.396 1 km/h and the relative error range of 0.71%–5.27%, which was consistent with the simulation results.