An atmospheric-pressure plasma apparatus for skin care includes a roller electrode rotating in contact with a skin and having a surface coated with a dielectric material. A rotation shaft support part is electrically connected to the roller electrode and supports a rotation shaft of the roller electrode. A power supply is provided for applying an AC high voltage to the rotation shaft support part to generate a plasma between the roller electrode and the skin. A case part is provided for mounting a portion of the roller electrode while protruding to the outside.
