An anisotropic exchange spring magnet powder complexing a hard magnetic
material and a soft magnetic material, wherein a rare earth metal
element, a transition metal element, boron and carbon and the like are
contained, and the hard magnetic material and soft magnetic material have
crystal particle diameters of 150 nm or less. A method of producing an
anisotropic exchange spring magnet powder comprises treating a
crystalline mother material containing a hard magnetic material and soft
magnetic material or the crystalline mother material having amorphous
parts, in a continuous process composed of an amorphising process and the
following crystallizing process, repeated once or more times. An
anisotropic exchange spring magnet is obtained by treatment, in an
anisotropy- imparting molding process and a solidification process, of an
anisotropic exchange spring magnet powder.