PURPOSE: To provide the processing solution not causing precipitation and deposition in the processing solution and to the inside walls and rollers in an automatic developing machine after the development process for processing the photographic sensitive material.

CONSTITUTION: The processing solution to be used for the process after the development processing, such as a fixing solution, contains at least one kind of compound represented by the formula in which each of R1-R4 is H, halogen, hydroxy, nitro, carboxy, sulfo, amino, methyl, ethyl, or aldehyde.