To provide a silver salt photothermographic dry imaging material excellent in image preservability and raw stock preservability, having low fog and high maximum density, and excellent in silver tone and density variation due to humidity change, even when rapidly heat-developed with a small laser imager, and an image forming method.

The silver salt photothermographic dry imaging material has on a support a photosensitive layer containing an organic silver salt, silver halide grains, a binder and a reducing agent, contains a bisphenol compound having a specific structure as the reducing agent, and contains a polymer obtained by copolymerizing 10-70 mass% of a monomer represented by the formula (M): CH2=CR01-CR02=CH2 as the binder in the photosensitive layer.