The present invention provides a steering apparatus that can provide good operation feeling in telescopic adjustment and can have a very simple configuration. The steering apparatus has a fixed bracket, a movable bracket, a sliding shaft support member, and a tightening tool. The sliding shaft support member is constituted by a main sliding unit made of an inelastic resin and buffer portions made of a rubber or an elastic resin. The buffer portions are fixedly attached to both sides of the main sliding unit in the front-rear direction, the upper and lower surfaces of the main sliding unit are in a state of sliding contact with both guide edges of a long hole for telescopic adjustment of the movable bracket, and the buffer portions can abut only on both stop end edges and do not come into contact with the two guide edges.