A steering device comprising: a stationary bracket which is fixed to a vehicle body-side member, and which includes a first plate; a movable jacket which is configured to rotatably support a steering shaft in which a steering member is coupled to one end; a movable bracket which is configured to support the movable jacket in a manner that, in a secondary collision, the movable bracket is moved together with the movable jacket in a column movement direction, and which includes a second plate that is opposed to the first plate; and a pair of suspension mechanisms (T1, T2) which include a pair of suspension shafts (251, 252) that couple the first plate and the second plate to each other while being passed through long holes (81, 82) which are a pair of first holes (81, 82) that are disposed in the first plate and that extend parallel to the column movement direction, and a pair of second holes (91, 92) of the second plate, the second holes (91, 92) respectively corresponding to the long holes (81, 82), thereby suspending the movable jacket through the movable bracket, the suspension mechanisms (T1, T2) in which a long-hole passing portion of each of the suspension shafts (251, 252) is moved, in a secondary collision, from an initial installed position along the corresponding long hole (81, 82) in the column movement direction, wherein an inner circumference (81a, 82a) of each of the long holes (81, 82) includes: a recessed curved surface portion (102, 201) which is disposed in an end portion in a direction opposite to the column movement direction; a first inner edge portion (102, 202) which is an inner edge portion on a side of a middle position between the pair of long holes (81, 82); and a second inner edge portion (103, 203) which is opposed to the first inner edge portion (102, 202), characterized in that, in a secondary collision, when one of the suspension shafts (251, 252) butts against the first inner edge portion (102, 202) of a corresponding one of the long holes (81, 82), a gap is formed between the other suspension shaft (251, 252) and the second inner edge portion (103, 203) of the corresponding other long hole (81, 82); and when the other suspension shaft (251, 252) butts against the first inner edge portion (102, 202) of the corresponding other long hole (81, 82), a gap is formed between the one of the suspension shafts (251, 252) and the second inner edge portion (103, 203) of the corresponding one of the long holes (81, 82). a stationary bracket which is fixed to a vehicle body-side member, and which includes a first plate; a movable jacket which is configured to rotatably support a steering shaft in which a steering member is coupled to one end; a movable bracket which is configured to support the movable jacket in a manner that, in a secondary collision, the movable bracket is moved together with the movable jacket in a column movement direction, and which includes a second plate that is opposed to the first plate; and a pair of suspension mechanisms (T1, T2) which include a pair of suspension shafts (251, 252) that couple the first plate and the second plate to each other while being passed through long holes (81, 82) which are a pair of first holes (81, 82) that are disposed in the first plate and that extend parallel to the column movement direction, and a pair of second holes (91, 92) of the second plate, the second holes (91, 92) respectively corresponding to the long holes (81, 82), thereby suspending the movable jacket through the movable bracket, the suspension mechanisms (T1, T2) in which a long-hole passing portion of each of the suspension shafts (251, 252) is moved, in a secondary collision, from an initial installed position along the corresponding long hole (81, 82) in the column movement direction, wherein an inner circumference (81a, 82a) of each of the long holes (81, 82) includes: a recessed curved surface portion (102, 201) which is disposed in an end portion in a direction opposite to the column movement direction; a first inner edge portion (102, 202) which is an inner edge portion on a side of a middle position between the pair of long holes (81, 82); and a second inner edge portion (103, 203) which is opposed to the first inner edge portion (102, 202), characterized in that, in a secondary collision, when one of the suspension shafts (251, 252) butts against the first inner edge portion (102, 202) of a corresponding one of the long holes (81, 82), a gap is formed between the other suspension shaft (251, 252) and the second inner edge portion (103, 203) of the corresponding other long hole (81, 82); and when the other suspension shaft (251, 252) butts against the first inner edge portion (102, 202) of the corresponding other long hole (81, 82), a gap is formed between the one of the suspension shafts (251, 252) and the second inner edge portion (103, 203) of the corresponding one of the long holes (81, 82).