The present invention provides a photothermographic material having, on at
least one side of a support, an image forming layer including at least a
photosensitive silver halide, a non-photosensitive organic silver salt, a
reducing agent, and a binder, and a non-photosensitive layer, wherein the
non-photosensitive layer includes at least a polymer matting agent having
a refractive index of from 1.51 to 1.56 and a glass transition
temperature of 90.degree. C. or higher. A photothermographic material
which is excellent in film surface properties and photographic properties
is provided.