Disclosed is a support for a lithographic printing plate obtainable by
performing at least graining treatment on an aluminum plate, having on its surface
thereof, a grain shape with a structure in which a grained structure with medium
undulation of 0.5 to 5 m average aperture diameter and a grained structure
with small undulation of 0.01 to 0.2 m average aperture diameter are superimposed,
and a presensitized plate provided with an image recording layer on the support
for a lithographic printing plate. By using this presensitized plate, a balance
between scum resistance and press life when a lithographic printing plate is produced
therefrom, which has been in a trade-off relation in the past, can be maintained
at a high level.