An object of the present invention is to provide a method of processing
silver halide color paper that ensures (a) promptness such that finished
prints can be handed at shop to customers, (b) small installation area
for mini-labs, (c) processing solution stability capable of withstanding
slack seasons, (d) normal image quality, (e) small replenishment solution
amount and (f) inhibition of tar generation and sulfuration phenomenon
occurrence. This object can be attained by a concentrated processing
composition for color paper which has a concentrated processing
composition for bleach replenishment of 3.0 or less in pH containing 0.3
mol/L or more of EDTA.Fe(III) ammonium, 0.3 mol/L or more of a sulfinic
acid compound of specified structure and 0.5 mol/L or more of ammonium
bromide and a concentrated processing composition for fixative
replenishment of 4.0 or more in pH containing 0.7 mol/L of ammonium
thiosulfate and 0.4 mol/L or more of ammonium sulfite, and which is used
in a processing involving the steps of treatment in a color developer,
bleaching treatment and fixing treatment, and a processing method using
the concentrated processing composition for color paper.