To provide a metal matrix composite material in which deformation caused by casting injection pressure in a preform used for compound reinforcement is reduced, and to provide a production method therefor.

The metal matrix composite material 10 is obtained by casting a preform 16 made of inorganic fiber into the part requiring reinforcement in a casting, and compounding a metal matrix 15 of the casting and the preform 16. The contact part 21 of the preform 16 with the metal matrix 15 is provided with a metal cushioning layer 22 with porous structure.