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The objectives of the present invention are to provide an oxidation-resistant rare earth metal-based magnet powder useful for producing rare earth metal-based bonded magnet which is not only excellent in oxidation resistance but also superior in magnetic characteristics and a method for producing the same, a compound for rare earth metal-based bonded magnet, a rare earth metal-based bonded magnet and a method for producing the same. The oxidation-resistant rare earth metal-based magnet powder of the present invention is characterized in that it has on its surface an adhesion layer containing a pigment as a primary component.