A vehicle steering apparatus, adjusting a position of a steering wheel in a longitudinal direction of a vehicle body, the steering apparatus comprising: a main tube supported by the vehicle body and having a tubular shape, the main tube including an opening portion being closed in an axial direction of the main tube and extending in the axial direction; a telescopic tube supported by the main tube to be slidable within the main tube; a connecting member being a tubular member having a bottom portion firmly attached to an outer surface of the telescopic tube to be movable within the opening portion along the axial direction of the main tube; a drive member (52, 53) connected to and arranged in the tubular member and supported by the tubular member, the drive member (52, 53) including a screw shaft and a nut engaging with the screw shaft; and a drive source driving the drive member (52, 53) to move the connecting member in the axial direction, the drive source being an electric motor supported by the main tube and having an output shaft, which is connected to the screw shaft, the electric motor rotating the screw shaft to move the telescopic tube in the axial direction of the main tube by moving the nut in an axial direction of the screw shaft, characterized by U-shaped cutout portions, which are formed in facing wall surfaces of the tubular member, the nut being accommodated in the tubular member, the screw shaft being arranged in the U-shaped cutout portions; and lock portions (22s, 5s), which are formed at one and the other ends, respectively, of the opening portion of the main tube in the axial direction, and the tubular member being contactable with the respective lock portions (22s, 5s). a main tube supported by the vehicle body and having a tubular shape, the main tube including an opening portion being closed in an axial direction of the main tube and extending in the axial direction; a telescopic tube supported by the main tube to be slidable within the main tube; a connecting member being a tubular member having a bottom portion firmly attached to an outer surface of the telescopic tube to be movable within the opening portion along the axial direction of the main tube; a drive member (52, 53) connected to and arranged in the tubular member and supported by the tubular member, the drive member (52, 53) including a screw shaft and a nut engaging with the screw shaft; and a drive source driving the drive member (52, 53) to move the connecting member in the axial direction, the drive source being an electric motor supported by the main tube and having an output shaft, which is connected to the screw shaft, the electric motor rotating the screw shaft to move the telescopic tube in the axial direction of the main tube by moving the nut in an axial direction of the screw shaft, characterized by U-shaped cutout portions, which are formed in facing wall surfaces of the tubular member, the nut being accommodated in the tubular member, the screw shaft being arranged in the U-shaped cutout portions; and lock portions (22s, 5s), which are formed at one and the other ends, respectively, of the opening portion of the main tube in the axial direction, and the tubular member being contactable with the respective lock portions (22s, 5s).