An alkaline developing solution for development of a presensitized plate
for use in making a lithographic printing plate, which developing
solution comprises a polyoxyalkylene adduct of alkylene diamine, a
polyoxyalkylene compound having an acid radical, and an anionic
surfactant; a method for making a lithographic printing plate comprising
the steps of: light-exposing a presensitized plate for use in making a
lithographic printing plate; and developing the light-exposed plate with
an alkaline developing solution comprising a polyoxyalkylene adduct of
alkylene diamine, a polyoxyalkylene compound having an acid radical, and
an anionic surfactant.