To automatically develop a photographed film only by simply inserting exposed film by providing a device separating photographic film from a cartridge and a splicing device splicing the end part of the photographic film and a processing tank including a developing tank or the like.

A cutter 213 is provided at the film pulling port of a photosensitive material supplying part 21, and when the nearly entire part of film F is pulled out from the cartridge P, the film F is cut by the actuation of the cutter 213, so that it is separated from the cartridge P. The splicing device 24 butting and connecting the leading edge of the film F pulled out and the trailing edge of the film F already carried out to a processing part 3 is provided on a side where the film F is carried out to a reading means 25. The film F is carried by a path shown by double dotted chain lines, and is successively immersed in processing solution at the inside of the developing tank 31, a bleaching tank 32, a fixing tank 33, a washing tank 34 and a stabilizing tank 35, so that processing is made.