Nano-printing conductive ink composition and preparation method and application thereof

The invention discloses a nano-printing conductive ink composition and a preparation method thereof. The nano-printing conductive ink composition is prepared from the following components in percentage by mass: 20-50% of metal nanoparticles, 1-8% of a dispersant, 15-35% of self-dispersing functional resin, 10-35% of solvent and 1-5% of a thickener. The preparation method comprises the steps that the metal nano particles, the dispersant, the self-dispersing functional resin, the solvent and the thickener are mixed uniformly, and then ground to a particle size being less than or equal to 100 nm.According to the nano-printing conductive ink composition, nano-metal conductive particles are uniformly distributed in the ink composition by using the self-dispersing functional resin and the dispersant, so that the conductive ink composition with high adhesion and good conductivity is obtained, and the initial volume resistance value of a metal film formed by the conductive ink composition canbe as low as 4[mu]omega.c