Secondary regulation hydrostatic transmission technology was applied to the mobile platform of the heavy load robot.Three structures of the secondary regulation electrohydraulic drive system for the mobile platform were designed.By using intelligent anticapsize technology of the mobile platform,communication and control technology based on CAN trunk,path planning and active obstacle avoidance technology,multisensor information fusion technology,an intelligent control system of the mobile platform was designed,by which the autonomous control,autonomous navigation and autonomous positioning of the mobile platform could be realized,as well as the energy recovery and reuse,and the installed power of the mobile platform was reduced.The mobile platform is suitable for high speed and heavy load in the field,with large load bearing capacity and strong traction capacity.