This paper presents the results of an experimental investigation on three different volcanic coarse-grained soils in the cyclic undrained triaxial tests varying both maximum past consolidation pressure and the overconsolidation ratio (OCR). Test results showed that the variation in cyclic deformation-strength behaviors due to overconsolidation was observed more clearly in the volcanic soils with which particle breakage had been induced during consolidation process and their variation characteristics relate uniquely to the OCR value. Therefore, the cyclic undrained triaxial strength of overconsolidated volcanic soils can be determined only by OCR. It was also considered that strength increase by overconsolidation is attributed mainly to the fabric change with significant particle breakages.