A photosensitive lithographic printing plate comprises a photosensitive layer
and
a protective layer formed in this order on a support, wherein the photosensitive
layer has a maximum peak of spectral sensitivity within a wavelength range ranging
from 390 to 430 nm, the minimum exposure for the photosensitive lithographic printing
plate for image formation at a wavelength of 410 nm (S410) is at most 100 J/cm2,
and the relation between the minimum exposure for image formation at a wavelength
of 450 nm (S450) and the minimum exposure for image formation at a wavelength of
410 nm (S410) is 0S410/S4500.1.
