To enhance adhesion the a photosensitive layer and to improve printing resistance and to reduce the occurrence of sludge in development and to eliminate residual films and dyes in development.

This support to be used for the lithographic printing plate is obtained by roughening an aluminum plate on the surface and treating it by an anodic oxidation process and further treating the surface with an aqueous solution of a metal silicate and an aqueous solution of a zirconium potassium fluoride so as to control it to an amount of 10-100 mg Si in terms of SiO2, 0.01-15 mg F, and 5-50 mg Zr each per 1 m2 of the surface of the support.