Nanometer diamond stone compound coating both has the strong adhesion like conventional diamond coating, the wear-resisting characteristic, and the smooth surface like nanometer diamond stone surface, the small friction coefficient and easy to grind and polish, the nanometer diamond stone compound coating mold is take the hard alloy as the substrate, one brand-new product which after the coating the hole surface spreading convention and the nanometer diamond compound coating, and carries on attrition polishing obtains, is the international origination, and has the proprietary intellectual property rights. This nanometer diamond stone compound coating mold has realized the industrial production.