To provide a photographic developing apparatus that can reduce a process time and prevent oxidation of a photosensitive material and a process liquid.

A print station 3 includes an boundary layer removing mechanism 20 disposed above a cleaning tank 15c in a process tank unit developing an image formed on a print surface of a print paper P. The boundary layer removing mechanism 20 includes water absorbing sheets 30, 31 containing a cleaning liquid disposed along a conveyance passage formed by a plurality of conveying roller pairs 41. The water absorbing sheets 30, 31 touches an emulsion surface P1 of the print paper P exiting from the cleaning tank 15ca to remove a boundary layer X formed on the emulsion surface P1.