To enhance the stacking properties of a high-stiffness photographic sensitive material.

The reflection supporting body of high-stiffness photographic sensitive material is constituted by covering at least an image recording side with a composition obtained by mixing and dispersing 50 wt.% or more white pigment in resin including polyester synthesized from dicalboxylic acid and a diol by condensation polymerization. By using this reflection supporting body, a silver halide photographic sensitive material 10 is produced. Then the four corners 10a of the material 10 or a photographic print obtained by recording an image on the material 10 are cut round. Since burr is not caused at the corner parts 10a of the high-stiffness material 10 by cutting the corner parts 10a round, the stacking properties are enhanced. Besides, since the corner parts 10a of the high-stiffness material 10 do not become pointed, a hand is not pricked with them.