A method for processing an imagewise exposed black-and-white negative silver halide photographic light-sensitive material comprising a support having provided thereon photographic layers including at least one silver halide emulsion layer, one of said photographic layers containing a hydrazine derivative, said method comprising;developing said light-sensitive material with a developer comprising a black and white developing agent and a compound represented by Formula VI, said developer having a pH of less than 11.5; ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are each independently hydrogen, --SM.sub.1, hydroxyl, alkoxyl having 1 to 5 carbon atoms, --COOM.sub.2, amino, alkyl having 1 to 5 carbon atoms, provided that at least one of R.sub.1, R.sub.2, and R.sub.3 is --SM.sub.1, and M.sub.1 and M.sub.2 are each independently hydrogen, alkali metal, or ammonium.