To provide a diffusion transfer type heat developing photosensitive material which contains a dye-donating material and a reducing agent and has excellent production stability and in which production or releasing of dyes of the dye-donating material is suppressed during the raw material is stored, and moreover, deactivation of the reducing agent can be suppressed, and increase in fog and decrease in the sensitivity are improved.

This photosensitive material has a hydrophilic binder, photosensitive silver halide, a dye-donating material which is substantially insoluble with water and a reducing agent which is substantially insoluble with water on a base body. The dye-donating material and the reducing agent are fine particles of solids which are independently dispersed in the hydrophilic binder.