To provide a facing stone block having a good appearance and strength when it is used for exterior work or stone wall, etc.

Both bearing surface 11 of a concrete block 10 and facing stone plate 20 with specific thickness having the same form as that are firmly bonded with each other by providing a resin adhesive layer, preferably an elastic resin adhesive layer 30 between them. The rear side of the facing stone plate 20 and bearing surface 11 are formed in a porous shape, and the resin adhesive layer 30 is partially infiltrated into a plurality of holes 22 and 12 on the rear side of the facing stone plate 20 and bearing surface 11 in the shape of an anchor.