The cloth piece transfer apparatus with side inverter of the invention is applied to the case of continuous feed of cut cloth pieces into a sewing machine or the like. Pickup 14 pinches holds and lifts the rear portion of the cloth piece N in the process of transfer of the cloth pieces N supplied and supported in horizontal position in uneven sides on a transfer device 4. A rodless cylinder 7 moves the pickup 14 in the transfer direction at a speed faster than the transfer speed of the transfer device 4. The cloth piece N moved by this rodless cylinder 7 is brought into contact with an inverting member 18 disposed beneath the middle position of the moving route of the pickup 14, and the sides of the cloth piece N are inverted. The inverted cloth piece N is dropped and supported on the transfer device 4. It enhances the transfer efficiency and is enable to transfer by inverting the sides without disturbing the interval of the cloth pieces supplied continuously.