Aiming at the complex engineering environment and diverse terrain conditions,a mobile operating platform based on active suspension was designed.The structure of the operating platform was designed,and the finite element structure statics analysis of the hydraulic actuated leg was carried out to verify the reliability of the mechanical structure of the actuated leg.The finite element structure dynamics analysis of the whole operating platform was carried out,and the frequency segment of the excitation source which could avoid resonance of the platform was obtained.According to the characteristics of the operating platform,the leveling algorithm of “center point not moving” was adopted,and the control of the platform angle was equivalent to the control of the displacement of the hydraulic actuating leg through the mathematical model.The electro-hydraulic proportional control system of the operating platform was designed,and the effectiveness of PID control algorithm was verified by simulation.The overall performance of the operation platform was verified through tests.The results show that the mobile operation platform based on active suspension meets the design requirements,achieves the expected goals.