A method for processing a silver halide photographic material is described, comprising the steps of:(a) developing a silver halide photographic material comprising a support having thereon at least one hydrophilic colloidal layer, including at least one light-sensitive emulsion layer containing tabular silver halide grains having an aspect ratio of at least about 4, the total number of hydrophilic colloidal layers having a degree of swelling of about 250% or less; and(b) after developing a predetermined amount of said silver halide photographic material, adding a single replenisher of the developer comprising a 3-pyrazolidone developing agent represented by formula (I): ##STR1## wherein R.sub.o represents a substituted or unsubstituted aryl group; and R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group, provided that when R.sub.o represents an unsubstituted phenyl group, at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group.