The effect of Corioli's force under the conditions of centrifuging and vibratlOn is investlgated in the paper. It is pomted out that Corioli's force cannot be neglected under composlte Clrcumstance of centrifuging and vihratlOn , which is in fact the combinatlOns of vibratlOn , centrifugmg and Corioli's force. Its effects should be considered in the design about the expenmental devlces of centrifuging and vibratlOn.