Provided is a fabrication method for a functional surface that has self-cleaning ability and superhydrophilic anti-reflective property, which includes a) arranging a plurality of beads having a sphere shape on a surface of a transparent substrate; b) forming a predetermined inter-bead gap by etching the plurality of beads; c) forming a surface unevenness on the surface of the substrate by etching the substrate using the plurality of the beads having the predetermined gap as an etching mask; d) removing the plurality of the beads from the surface of the substrate; and e) forming a photocatalytic layer or a compound layer having a surface tension of 18 to 28 N/m on the surface of the substrate formed with the surface unevenness.