To obtain a printing plate material for a negative type planographic printing plate having high near IR sensitivity and excellent in preservability.

The printing plate material has a recording layer contg. at least a polymer soluble in an alkaline developer, a near IR absorbing dye, a latent Brnsted acid and a 1,3,5-triazine compd. having two or more methylolated amino groups or methoxymethylamino groups as substituents. The polymer is preferably a phenolic resin such as novolak resin, resol, resin or polyvinylphenol resin.