A rare-earth permanent magnet-forming sintered body comprising particles of a magnet material containing a rare-earth substance, the magnet material particles being integrally sintered while being formed into a given three-dimensional shape with a lengthwise cross-section having a first surface extending in a length direction thereof, a second surface lying at a distance from the first surface in a thickness direction thereof and extending in the length direction, and edge surfaces of lengthwise opposite ends thereof, each of the edge surfaces being inclined to extend from a corresponding lengthwise edge of the first surface obliquely outwardly in the length direction, whereby a length of the first surface becomes less than that of the second surface, wherein the rare-earth permanent magnet-forming sintered body has a trapezoidal shape in cross-section and is sectionalized into at least a lengthwise central region, and first and second end regions located, respectively, on both sides of the central region, and wherein: in the central region, easy magnetization axes of the magnet material particles included in the central region have a parallel orientation in which the easy magnetization axes are oriented in a direction substantially orthogonal to the first surface of the sintered body extending in the length direction; in each of the first and second end regions, easy magnetization axes of the magnet material particles included in the end region are oriented such that: at a position adjacent to the edge surface, they are directed toward the first surface at an angle inclined with respect to the first surface along an inclination of the edge surface; at a position adjacent to the central region, they are directed toward the first surface in a direction substantially orthogonal to the first surface; and, at a position between the edge surface and the central region, they are converged in such a manner as to be directed toward the first surface at an inclination angle with respect to the first surface which gradually increases in a direction from the edge surface toward the central region; and characterised in that a ratio P/L of a lengthwise dimension P of the central region to a lengthwise dimension L of the first surface is in the range of 0.05 to 0.8. wherein the rare-earth permanent magnet-forming sintered body has a trapezoidal shape in cross-section and is sectionalized into at least a lengthwise central region, and first and second end regions located, respectively, on both sides of the central region, and wherein: in the central region, easy magnetization axes of the magnet material particles included in the central region have a parallel orientation in which the easy magnetization axes are oriented in a direction substantially orthogonal to the first surface of the sintered body extending in the length direction; in each of the first and second end regions, easy magnetization axes of the magnet material particles included in the end region are oriented such that: at a position adjacent to the edge surface, they are directed toward the first surface at an angle inclined with respect to the first surface along an inclination of the edge surface; at a position adjacent to the central region, they are directed toward the first surface in a direction substantially orthogonal to the first surface; and, at a position between the edge surface and the central region, they are converged in such a manner as to be directed toward the first surface at an inclination angle with respect to the first surface which gradually increases in a direction from the edge surface toward the central region; and characterised in that a ratio P/L of a lengthwise dimension P of the central region to a lengthwise dimension L of the first surface is in the range of 0.05 to 0.8. in the central region, easy magnetization axes of the magnet material particles included in the central region have a parallel orientation in which the easy magnetization axes are oriented in a direction substantially orthogonal to the first surface of the sintered body extending in the length direction; in each of the first and second end regions, easy magnetization axes of the magnet material particles included in the end region are oriented such that: at a position adjacent to the edge surface, they are directed toward the first surface at an angle inclined with respect to the first surface along an inclination of the edge surface; at a position adjacent to the central region, they are directed toward the first surface in a direction substantially orthogonal to the first surface; and, at a position between the edge surface and the central region, they are converged in such a manner as to be directed toward the first surface at an inclination angle with respect to the first surface which gradually increases in a direction from the edge surface toward the central region; and characterised in that a ratio P/L of a lengthwise dimension P of the central region to a lengthwise dimension L of the first surface is in the range of 0.05 to 0.8.