To provide a reflection suppressing film with more excellent effects on both reflection suppression and scattering prevention.

A reflection suppressing film comprises: a light-permeable support 1; and a microparticle layer 20 including approximately-spherical microparticles that are arranged on a surface in a state of keeping approximately-regular intervals. A diameter of a microparticle 3 is 0.2 to 0.275 μm, and an interval between the adjacent approximately-spherical microparticles is 0.025 to 0.05 μm. A manufacturing method for the reflection suppressing film includes: a first step for fixing multiple first spherical particles with light permeability in a state of contacting the light-permeable support 1 and a state that the adjacent first spherical particles contact each other; and a second step for arranging multiple second spherical particles with light permeability on the first spherical particles in a state of contacting them and for fixing the arranged second spherical particles in such a manner as partially embedding them on the side of the first spherical particles in a light-permeable material. Each diameter of the first spherical particles differs from each diameter of the second spherical particles.