A supporting apparatus for a steering bracket, comprising: a steering bracket supporting a steering column; a separation capsule to fix a vehicle body-side member to the steering bracket; a resin member; a shear pin; and an inertial action body, the supporting apparatus for the steering bracket characterized by: the steering bracket including a first bracket-side hole and a second bracket-side hole opened thereon; the separation capsule including a first capsule-side hole and a second capsule-side hole opened thereon; the resin member arranged at a position straddling the first bracket-side hole and the first capsule-side hole; the shear pin arranged at a position straddling the second bracket-side hole and the second capsule-side hole; and the inertial action body including a weight portion, the weight portion arranged to move to a front side of a vehicle by inertia due to a primary collision, and the inertial action body arranged to pull out the shear pin from the second bracket-side hole with a movement of the weight portion, wherein the inertial action body includes a base portion and a claw portion obtained by dividing the base portion with a slit, and the shear pin penetrates into the slit so that a head portion of the shear pin comes into contact with a surface of the claw portion. a steering bracket supporting a steering column; a separation capsule to fix a vehicle body-side member to the steering bracket; a resin member; a shear pin; and an inertial action body, the supporting apparatus for the steering bracket characterized by: the steering bracket including a first bracket-side hole and a second bracket-side hole opened thereon; the separation capsule including a first capsule-side hole and a second capsule-side hole opened thereon; the resin member arranged at a position straddling the first bracket-side hole and the first capsule-side hole; the shear pin arranged at a position straddling the second bracket-side hole and the second capsule-side hole; and the inertial action body including a weight portion, the weight portion arranged to move to a front side of a vehicle by inertia due to a primary collision, and the inertial action body arranged to pull out the shear pin from the second bracket-side hole with a movement of the weight portion, wherein the steering bracket including a first bracket-side hole and a second bracket-side hole opened thereon; the separation capsule including a first capsule-side hole and a second capsule-side hole opened thereon; the resin member arranged at a position straddling the first bracket-side hole and the first capsule-side hole; the shear pin arranged at a position straddling the second bracket-side hole and the second capsule-side hole; and the inertial action body including a weight portion, the weight portion arranged to move to a front side of a vehicle by inertia due to a primary collision, and the inertial action body arranged to pull out the shear pin from the second bracket-side hole with a movement of the weight portion, wherein the inertial action body includes a base portion and a claw portion obtained by dividing the base portion with a slit, and the shear pin penetrates into the slit so that a head portion of the shear pin comes into contact with a surface of the claw portion.