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A kind of device which can bear loads and vibration is designed to improve the stability and flexibility of the performance of tracked robot on rugged ground. This device can effectively cushion and absorb low amplitude high-frequency vibration and high amplitude low-frequency vibration. The performance of the device is improved by kinematics and dynamics simulation using Adams, putting minimum elastic force of the spring as the target of optimization. Using AutoCAD2010 as the platform, a secondary development of the subsystem of the set is carried out by the application of ObjectARX2010 to improve the efficiency of the design. A parameter-driven generation library of related graphics with good HCI is developed under the guidance of modularization, parameterization and intellectualization. It contributes to the improvement of design efficiency and the compare of the device graphics under different parameters, which helps the designer guarantee the quality of the design. 