A steering device comprising: a fixed bracket which includes a first plate fixed to a vehicle body-side member; a movable jacket which rotatably supports a steering shaft having a steering member connected to one end of the steering shaft; a movable bracket which supports the movable jacket so as to move in a column moving direction when a secondary collision occurs and which includes a second plate facing the first plate; and a pair of suspending mechanisms (T1, T2) which include a pair of suspending shafts (251, 252) inserted through a pair of elongated holes (81, 82) and a pair of circular holes (91, 92), the elongated holes (81, 82) being provided in the first plate so as to extend parallel to the column moving direction and the circular holes (91, 92) being provided in the second plate so as to respectively correspond to the pair of elongated holes (81, 82), to connect the first plate and the second plate together to thereby suspend the movable jacket via the movable bracket, wherein respective elongated hole inserted portions of the suspending shafts (251, 252) move from an initial assembling position in the column moving direction along the corresponding elongated holes (81, 82) when the secondary collision occurs, characterized in that an inner circumference of either of the elongated holes (81, 82) includes a pair of flat surface portions (83, 84) which extend parallel to the column moving direction and a space (W1, W2) defined therebetween which is greater than an outside diameter of the elongated hole inserted portion of the corresponding suspending shaft (251, 252), a concavely arc-shaped surface portion which bears part of an outer circumference of the elongated hole inserted portion of the corresponding suspending shaft (251, 252) when disposed in the initial assembling position, and a pair of tapered surface portions (86, 87) which extend individually from a pair of end portions of the arc-shaped surface portion in a tangential direction to connect to the corresponding flat surface portions (83, 84), wherein, in the initial assembling position, in the inner circumference of the either of the elongated holes (81, 82), the corresponding suspending shaft is held between the tapered surface portions (86, 87), and wherein tapered angles (θ1, θ2) which the tapered surfaces form relative to the column moving direction are equal to or greater than a friction angle (β). a fixed bracket which includes a first plate fixed to a vehicle body-side member; a movable jacket which rotatably supports a steering shaft having a steering member connected to one end of the steering shaft; a movable bracket which supports the movable jacket so as to move in a column moving direction when a secondary collision occurs and which includes a second plate facing the first plate; and a pair of suspending mechanisms (T1, T2) which include a pair of suspending shafts (251, 252) inserted through a pair of elongated holes (81, 82) and a pair of circular holes (91, 92), the elongated holes (81, 82) being provided in the first plate so as to extend parallel to the column moving direction and the circular holes (91, 92) being provided in the second plate so as to respectively correspond to the pair of elongated holes (81, 82), to connect the first plate and the second plate together to thereby suspend the movable jacket via the movable bracket, wherein respective elongated hole inserted portions of the suspending shafts (251, 252) move from an initial assembling position in the column moving direction along the corresponding elongated holes (81, 82) when the secondary collision occurs, characterized in that an inner circumference of either of the elongated holes (81, 82) includes a pair of flat surface portions (83, 84) which extend parallel to the column moving direction and a space (W1, W2) defined therebetween which is greater than an outside diameter of the elongated hole inserted portion of the corresponding suspending shaft (251, 252), a concavely arc-shaped surface portion which bears part of an outer circumference of the elongated hole inserted portion of the corresponding suspending shaft (251, 252) when disposed in the initial assembling position, and a pair of tapered surface portions (86, 87) which extend individually from a pair of end portions of the arc-shaped surface portion in a tangential direction to connect to the corresponding flat surface portions (83, 84), wherein, in the initial assembling position, in the inner circumference of the either of the elongated holes (81, 82), the corresponding suspending shaft is held between the tapered surface portions (86, 87), and wherein tapered angles (θ1, θ2) which the tapered surfaces form relative to the column moving direction are equal to or greater than a friction angle (β).