To obtain a solvent coating system heat developable photosensitive material which suppresses the variation of gradation in raw stock preservation, has high contrast when used for making a printing plate and hardly develops curl even in the case of a rolled product and to obtain an aqueous coating system heat developable photosensitive material which suppresses humidity sensitization and the variation of gradation in raw stock preservation, has high contrast when used for making a printing plate and hardly develops curl even in the case of a rolled product.

A heat developable photosensitive material having organic silver salt grains, photosensitive silver halide grains and a reducing agent on the substrate is packed with a packing material having ≤50 ml/ atm.m2.25°C.day oxygen permeability or a packing material having ≤10 g/ atm.m225°C.day water permeability.