The utility model discloses a nanometer ion air purification device, including the casing, set up air intake and air outlet on the casing, the inside airflow direction that follows of casing sets gradually air purification device, fan, nanometer ion generating device, still is provided with the support frame in the casing, and the fan is settled on the support frame. Nanometer ion generating device makes the nanometer ion that contains the reduction material in a large number, and under the effect of fan, clean air after air purification device purifies carries the air outlet blowout of nanometer ion on the casing that contains the reduction material, when realizing to external world air purification, carries out the maintenance to human skin, hair.