A support apparatus for a steering column comprising: a column-side bracket that comprises a top surface, and that is supported by the steering column for supporting a steering shaft on the inside thereof so as to be able to rotate freely, so as to displace in the forward direction together with the steering column during a secondary collision; a vehicle-side bracket that comprises: a bottom surface that comes in contact with or closely faces the top surface, a locking notch that extends in the axial direction of the steering column, and a plurality of fixed side volume sections that are provided on a perimeter edge section around the locking notch; and that is supported by and fastened to the vehicle body side, so as not to displace in the forward direction even during a secondary collision; a locking capsule that together with being locked in the locking notch, comprises: end sections on both ends in the width direction that are located on the top side of the perimeter edge section of the vehicle-side bracket, and a plurality of displacing side volume sections that are located so as to be aligned with the fixed side volume sections; and that is fastened to the column-side bracket so as to displace in the forward direction together with the column-side bracket during a secondary collision; characterized by a plurality of connecting members that are made of synthetic resin that spans between the fixed side volume sections to the displacing side volume section, and that shear off due to an impact load that is applied during a secondary collision; and concave sections (54a, 54b) that are formed on at least one of the bottom surface of the vehicle-side bracket and the top surface of the column-side bracket, so as to extend on a portion where the bottom surface of the vehicle-side bracket faces the top surface of the column-side bracket, and together with one end thereof connecting to the fixed side volume sections, the other end thereof being open to an external space side, and into which part of the synthetic resin enters; by holding the perimeter edge section of the vehicle-side bracket by the top surface of the column-side bracket and both end sections in the width direction of the locking capsule, the column-side bracket being supported by the vehicle-side bracket so as to be able to break away in the forward direction due to an impact load that is applied during a secondary collision. a column-side bracket that comprises a top surface, and that is supported by the steering column for supporting a steering shaft on the inside thereof so as to be able to rotate freely, so as to displace in the forward direction together with the steering column during a secondary collision; a vehicle-side bracket that comprises: a bottom surface that comes in contact with or closely faces the top surface, a locking notch that extends in the axial direction of the steering column, and a plurality of fixed side volume sections that are provided on a perimeter edge section around the locking notch; and that is supported by and fastened to the vehicle body side, so as not to displace in the forward direction even during a secondary collision; a locking capsule that together with being locked in the locking notch, comprises: end sections on both ends in the width direction that are located on the top side of the perimeter edge section of the vehicle-side bracket, and a plurality of displacing side volume sections that are located so as to be aligned with the fixed side volume sections; and that is fastened to the column-side bracket so as to displace in the forward direction together with the column-side bracket during a secondary collision; characterized by a plurality of connecting members that are made of synthetic resin that spans between the fixed side volume sections to the displacing side volume section, and that shear off due to an impact load that is applied during a secondary collision; and concave sections (54a, 54b) that are formed on at least one of the bottom surface of the vehicle-side bracket and the top surface of the column-side bracket, so as to extend on a portion where the bottom surface of the vehicle-side bracket faces the top surface of the column-side bracket, and together with one end thereof connecting to the fixed side volume sections, the other end thereof being open to an external space side, and into which part of the synthetic resin enters; by holding the perimeter edge section of the vehicle-side bracket by the top surface of the column-side bracket and both end sections in the width direction of the locking capsule, the column-side bracket being supported by the vehicle-side bracket so as to be able to break away in the forward direction due to an impact load that is applied during a secondary collision.