The shock load imposed on the equipments is multidirectional. At the same time, the isolators installed under equipments will appear multidirectional distortion. In this condition, the shock characteristics of isolators are distinct from the results in the unidirectional shocks in lab. The studies about the influence multidirectional shocks experts upon shock characteristics of isolators are little both home and abroad at present, and it is necessary for us to conduct groping works about this problem. Therefore, the shock characteristics along two directions of BE120 and EA120 isolators are tested using drop hammer impact test machine. The results show that the stiffness of isolators have dependencies on the main axle direction stiffness. While, the results can’t represent all isolators for the lack of sampling tests.