Damping of a multidimensional vibration isolation device for transporting eggs was discussed. The air cylinder was used as a damper and its coefficient of damping was measured with CNC lathe. The accelerations of up-platform with different coefficients of damping were measured and compared by means of ADAMS simulation and experiments. Studies indicated that it’s inappropriate to design the damping of the device according to the classic amplitude-frequency chart. It was proposed that the damping should be decided according to performance index of transient response of second order system. The conclusion showed that the multidimensional vibration isolation device for transporting eggs isolates vibration present a favorable effect when the damping ratio of 0.707 is adopted for the coefficientof damping of the air cylinder. 