To provide a replenishment water supply device of an automatic developing machine for a silver halide color photosensitive material provided with a silver ion elution means in which no water stain is generated in a water replenishment tank, and in which the influence on the photographic performance is extremely little even when the replenishment water in the water replenishment tank is supplied to each processing chamber, and to provide a method for processing a silver halide color photosensitive material using the same.

In the method for processing the silver halide color photosensitive material, the silver halide color photosensitive material is processed by replenishing the replenishment water containing the silver ions eluted by the silver ion elution means in the water replenishment tank to at least one processing chamber of the automatic developing machine.