Abstract: Dynamic shear modulus and damping ratio are two main parameters when dynamic performance of aeolian soil in west Liaoning province is researched. This paper analyses the influence of confining pressure, consolidation ratio and frequency of vibration on dynamic shear modulus and damping ratio of aeolian soil though a series of dynamic triaxial tests. Experimental results show that the dynamic shear modulus of aeolian soil increases with the confining pressure and the consolidation ratio up, just the opposite, the damping ratio decreases; the dynamic shear modulus and the consolidation ratio decreases with the frequency of vibration up, but unlike the two factors above, the influence is small.