A steering column support apparatus, comprising: a bracket on the vehicle side having a locking hole that extends in the axial direction of a steering column and that is located in the center section in the width direction of the bracket, this bracket on the vehicle side being fastened to the vehicle so as not to displace in the forward direction during a secondary collision; a bracket (12b, 12c) on the column side that is supported by the steering column and comprises a top plate section (57, 57a) on the top end section thereof; and a locking capsule (53, 53a-f) that is fastened to the bracket (12b, 12c) on the column side and is locked in the locking hole of the bracket on the vehicle side, the bracket (12b, 12c) on the column side being supported by the bracket on the vehicle side by way of the locking capsule (53, 53a-f) so as to be able to break away in the forward direction due to an impact load that is applied during a secondary collision, the bracket (12b, 12c) on the column side and the locking capsule (53, 53a-f) being both made of metal plate that can be welded, characterised in that the locking capsule (53, 53a-f) comprises: a base plate section (54, 54a-f) that is fastened to a top surface of the top plate section (57, 57a) of the bracket (12b, 12c) on the column side by welding with this base plate section (54, 54a-f) overlapping with the top plate section (57, 57a); a pair of raised sections that are bent and extend upward from both end sections in the width direction of the base plate section (54, 54a-f); and at least a pair of eave sections (56, 56a) that are bent and extend in opposite directions from each other from the top ends of the raised sections, and the portion of the bracket on the vehicle side on both sides of the locking hole fitting between the top surface of the bracket (12b, 12c) on the column side and the bottom surface of the eave sections (56, 56a), a plurality of small through holes (49a, 49b) are formed in portions of the bracket on the vehicle side on both sides of the locking hole, and in portions of the eave sections (56, 56a) of the locking capsule (53, 53a-f) that are aligned with each other, connecting pins made of synthetic resin are formed by performing injection molding of injecting molten resin in the aligned small through holes (49a, 49b) such that these connecting pins span between these small through holes (49a, 49b), and together with the locking capsule (53, 53a-f) being connected to the bracket on the vehicle side by the connecting pins, part of the synthetic resin of the connecting pins penetrates into at least part of a space that exists between the top and bottom surfaces of the bracket on the vehicle side and the opposing surfaces to these surfaces, preventing vibration in the space between these surfaces. a bracket on the vehicle side having a locking hole that extends in the axial direction of a steering column and that is located in the center section in the width direction of the bracket, this bracket on the vehicle side being fastened to the vehicle so as not to displace in the forward direction during a secondary collision; a bracket (12b, 12c) on the column side that is supported by the steering column and comprises a top plate section (57, 57a) on the top end section thereof; and a locking capsule (53, 53a-f) that is fastened to the bracket (12b, 12c) on the column side and is locked in the locking hole of the bracket on the vehicle side, the bracket (12b, 12c) on the column side being supported by the bracket on the vehicle side by way of the locking capsule (53, 53a-f) so as to be able to break away in the forward direction due to an impact load that is applied during a secondary collision, the bracket (12b, 12c) on the column side and the locking capsule (53, 53a-f) being both made of metal plate that can be welded, characterised in that the locking capsule (53, 53a-f) comprises: a base plate section (54, 54a-f) that is fastened to a top surface of the top plate section (57, 57a) of the bracket (12b, 12c) on the column side by welding with this base plate section (54, 54a-f) overlapping with the top plate section (57, 57a); a pair of raised sections that are bent and extend upward from both end sections in the width direction of the base plate section (54, 54a-f); and at least a pair of eave sections (56, 56a) that are bent and extend in opposite directions from each other from the top ends of the raised sections, and the portion of the bracket on the vehicle side on both sides of the locking hole fitting between the top surface of the bracket (12b, 12c) on the column side and the bottom surface of the eave sections (56, 56a), a plurality of small through holes (49a, 49b) are formed in portions of the bracket on the vehicle side on both sides of the locking hole, and in portions of the eave sections (56, 56a) of the locking capsule (53, 53a-f) that are aligned with each other, connecting pins made of synthetic resin are formed by performing injection molding of injecting molten resin in the aligned small through holes (49a, 49b) such that these connecting pins span between these small through holes (49a, 49b), and together with the locking capsule (53, 53a-f) being connected to the bracket on the vehicle side by the connecting pins, part of the synthetic resin of the connecting pins penetrates into at least part of a space that exists between the top and bottom surfaces of the bracket on the vehicle side and the opposing surfaces to these surfaces, preventing vibration in the space between these surfaces.