To provide a heat-developable photosensitive material for forming a printing plate using a contrast enhancing agent and improved in uneven scanning in laser beam exposure scanning by lowering contrast without deteriorating dot quality.

The heat-developable photosensitive material contains organic silver grains, photosensitive silver halide grains, a reducing agent, a contrast enhancing agent, and/or a quarternary onium salt compound on a support, and an image gradation γ is 6.0-14.0, and the material satisfies at least one of the following conditions: (1) The thickness of an photosensitive layer is 16-25 μm, (2) the photosensitive layer contains fine particles having an average particle diameter of 0.02-1.0 μm in an amount of 5-50 mg/m2, (3) the photosensitive layer contains ≥2 kinds of silver halide grains different from each other in a sensitivity of 0.03 logE-0.151 logE, and each in an amount of ≥10 mol%, (4) it contains a redox compound, and (5) the light absorption of the photographic constituent layers opposite to the photosensitive layer across the support is ≥0.3 and <0.7 in the exposure wavelength.