Disclosed are a decorative functional film (100) and an electronic device rear cover module (300) with the decorative functional film (100). The decorative functional film (100) includes: a micro-nano layer (11) including a plurality of convex and/or concave micro-nano structures (111); a reflective layer (12) covering the micro-nano layer (11); a coloring layer (13) covering the reflective layer (12); and a functional layer (14) including a conductive layer (341). The decorative functional film (100) has both decorative and functional properties.