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A composite magnetostrictive material having a magnetostrictive performance required for practical use and yet a higher strength. A composite magnetostrictive material 1 is comprised of a matrix 2 formed of a magnetostrictive material of an RM-based alloy, wherein R is a rare earth clement and M is one of a transition metal and aluminum, and dispersion phases 3 dispersed in the matrix and formed of at least one of an RM-based alloy, R and M.