The invention provides a metal surface nanometer injection molding method, which comprises the following steps of pretreatment, cleaning in cleaning liquid, water washing by pure water, and drying treatment. Metal Ni, Cr, Cu or alloy anti-corrosion metal templates cover the surface of a metal substrate; the metal template comprises a blank region and a metal region; anti-corrosion metal is physically sputtered to the surface of a substrate of the metal template; the anti-corrosion metal template is taken down; a metal base plate subjected to sputtering is soaked into acid corrosion liquid to be corroded for many times; uniformly distributed micrometer grade corrosion holes can be obtained; water washing is performed by pure water; the corroded metal substrate is soaked into a weak acid solution; nanometer holes being 20 to 80nm are formed in the surface; then, water washing by pure water and drying treatment are performed; finally, the substrate is subjected to nanometer injection molding.