A method for manufacturing a field magnet configured such that a cylindrical bonded magnet is fixed in a tubular yoke (1; 5; 6) composed of a magnetic material, the bonded magnet obtained by binding magnet particles with a thermosetting resin, the method comprising: a softening step for reheating and softening the bonded magnet after thermal curing treatment; and a press-fitting step for fitting in the bonded magnet after the softening step from one end side of the yoke (1; 5; 6) to press an outer circumferential surface of the bonded magnet against an inner surface of the yoke (1; 5; 6), the press-fitting step including feeding the bonded magnet relatively into the yoke (1; 5; 6) by a feeding jig while allowing a relative posture variation between the bonded magnet and the yoke (1; 5; 6), and wherein the yoke (1; 5; 6) is supported by a receiving jig that is a bottomed cylindrical body comprising a cylindrical portion , an opening portion on one end side of the cylindrical portion , and a bottom portion on the other end side of the cylindrical portion and an inner diameter of the cylindrical portion is larger than an outer diameter of the yoke (1; 5; 6) such that there is a gap between the inner surface of the cylindrical portion of the receiving jig and the outer circumferential surface of the yoke (1; 5; 6), and wherein the feeding jig includes a base portion and a cylindrical interpolation portion extending from the base portion through a center of the bonded magnet , and the outer diameter of the interpolation portion of the feeding jig is smaller than the inner diameter of the bonded magnet such that there is a gap between the outer circumferential surface of the interpolation portion and the inner surface of the bonded magnet . a softening step for reheating and softening the bonded magnet after thermal curing treatment; and a press-fitting step for fitting in the bonded magnet after the softening step from one end side of the yoke (1; 5; 6) to press an outer circumferential surface of the bonded magnet against an inner surface of the yoke (1; 5; 6), the press-fitting step including feeding the bonded magnet relatively into the yoke (1; 5; 6) by a feeding jig while allowing a relative posture variation between the bonded magnet and the yoke (1; 5; 6), and wherein the yoke (1; 5; 6) is supported by a receiving jig that is a bottomed cylindrical body comprising a cylindrical portion , an opening portion on one end side of the cylindrical portion , and a bottom portion on the other end side of the cylindrical portion and an inner diameter of the cylindrical portion is larger than an outer diameter of the yoke (1; 5; 6) such that there is a gap between the inner surface of the cylindrical portion of the receiving jig and the outer circumferential surface of the yoke (1; 5; 6), and wherein the feeding jig includes a base portion and a cylindrical interpolation portion extending from the base portion through a center of the bonded magnet , and the outer diameter of the interpolation portion of the feeding jig is smaller than the inner diameter of the bonded magnet such that there is a gap between the outer circumferential surface of the interpolation portion and the inner surface of the bonded magnet . <EOS>