Abstract: A paper selecting apparatus includes an upstream side transportation passage having an inclined bottom surface(s) held in the inclined state in the transverse direction, a lower stage transportation passage extending in continuation from the downstream end of the upstream side transportation passage, an upper stage transportation passage disposed above the lower one with a predetermined distance kept therebetween and a guide wall disposed between the upstream side transportation passage and the upper stage transportation passage for determining the direction of further movement of paper which has been displaced from the upstream side transportation passage to selectively bring it to either of both the upper and lower stage transportation passages in conformance with the width of paper to be selected.