To provide a photo-thermal photographic image forming material capable of suppressing generation of odor during thermal development thereby mitigating the maintenance and management of an odor collection apparatus, and to provide a packaging bag and a packaging method of the photo-thermal photographic image forming material.

In the photo-thermal photographic image forming material having a layer containing photosensitive silver halide particles, organic silver salts, a reducing agent and a binder on a substrate body, the image forming material contains extracts of plants which belong to Cupressaceae, Taxodiaceae, Betulaceae, Pinaceae, Rutaceae, Lauraaceae, Labiatae, Myrtaceae, Oleaceae, Rosaceae, Cornaceae, Umbelliferae, Lamiaceae, Zingiberaceae, Usneaceae, Araliaceae, Gramineae and Combretaceae. The packaging material contains the extracts. The packaging method uses the material.