A steering device comprising: a cylindrical inner column which rotatably supports an input shaft connected to a steering wheel and has a first hole opened therein; a cylindrical outer column into which at least a part of the inner column is inserted and which has a slit formed by notching one end from which the inner column is inserted; an outer column bracket which is fixed to a vehicle body side member to support the outer column and clamp the outer column together with a telescopic friction plate (21; 21A; 21B; 22; 22B) which is a plate material; and a rod which penetrates the telescopic friction plate and the outer column bracket and supports the telescopic friction plate, characterized in that the steering device further comprises: an inner column bracket (4; 4B) which is supported by the telescopic friction plate and has a second hole formed therein; a shear pin which separably connects the inner column and the inner column bracket (4; 4B) at a position across the first hole and the second hole; and a rotation stopper which is provided at a rear side in relation to the rod and contacts the telescopic friction plate when the telescopic friction plate rotates about the rod in the event of a secondary collision, wherein when an excessive load is applied to the steering wheel, the load is transmitted to the inner column through the input shaft so that the inner column moves toward the front side (Df) of the vehicle body, wherein meanwhile the inner column bracket (4; 4B) does not move, and since a shearing force is applied to the shear pin, the shear pin is cut when the load exceeds an allowable shearing force of the shear pin. a cylindrical inner column which rotatably supports an input shaft connected to a steering wheel and has a first hole opened therein; a cylindrical outer column into which at least a part of the inner column is inserted and which has a slit formed by notching one end from which the inner column is inserted; an outer column bracket which is fixed to a vehicle body side member to support the outer column and clamp the outer column together with a telescopic friction plate (21; 21A; 21B; 22; 22B) which is a plate material; and a rod which penetrates the telescopic friction plate and the outer column bracket and supports the telescopic friction plate, characterized in that the steering device further comprises: an inner column bracket (4; 4B) which is supported by the telescopic friction plate and has a second hole formed therein; a shear pin which separably connects the inner column and the inner column bracket (4; 4B) at a position across the first hole and the second hole; and a rotation stopper which is provided at a rear side in relation to the rod and contacts the telescopic friction plate when the telescopic friction plate rotates about the rod in the event of a secondary collision, an inner column bracket (4; 4B) which is supported by the telescopic friction plate and has a second hole formed therein; a shear pin which separably connects the inner column and the inner column bracket (4; 4B) at a position across the first hole and the second hole; and a rotation stopper which is provided at a rear side in relation to the rod and contacts the telescopic friction plate when the telescopic friction plate rotates about the rod in the event of a secondary collision, wherein when an excessive load is applied to the steering wheel, the load is transmitted to the inner column through the input shaft so that the inner column moves toward the front side (Df) of the vehicle body, wherein meanwhile the inner column bracket (4; 4B) does not move, and since a shearing force is applied to the shear pin, the shear pin is cut when the load exceeds an allowable shearing force of the shear pin.