To provide a medium feeding device equipped with a supporting means for media capable of feeding the media certainly without interference with a guide means for media, a recording device equipped with the feeding device, and a liquid jetting device.

The recording device is equipped with the supporting means 141e to support the leading edge of each medium when it is fed and the guide means 141c movable in the direction perpendicular to the medium feeding for guiding one side edge of the medium being fed. The supporting means is accommodated under the guide means when it makes movement. Accordingly the leading edge of the medium is supported when it is fed, the medium can be prevented from sinking, and no interference is made when the guide means is in movement, which eliminates the labor to remove and facilitates handling.