The present invention relates to a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol, and more particularly to a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol (IHPA), comprising a hydrogen peroxide solution storage and supply unit ； An air supply unit provided with an air pump for introducing external air and supplying pressurized air； A spray device for spraying the hydrogen peroxide solution in the form of mist through the spray nozzle by receiving the hydrogen peroxide solution and pressurized air from the hydrogen peroxide solution storage and supply part and the air supply part； A plasma generator disposed in proximity to a spray nozzle of the sprayer unit and having a plasma electrode for generating a plasma discharge so that hydrogen peroxide sprayed in a mist form is dispersed in the form of ionized hydrogen peroxide aerosol (IHPA)； And a plasma power supply unit for supplying power to a plasma electrode of the plasma generator unit to cause a plasma discharge in the plasma generator unit. According to the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol proposed in the present invention, in the construction of the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol, by constituting the plasma electrode in the form of the surface electrode, It is possible to increase the ionization efficiency of hydrogen peroxide and the amount of IHPA by widening the contact area between the spray droplet mist and the plasma electrode. In addition, according to the present invention, by forming a plasma electrode in the form of a surface electrode so that a flat plasma discharge can be generated, the ionization efficiency of hydrogen peroxide and the amount of IHPA, which are increased together with the fine particle size, It is possible to further improve the original activity of the space penetration and the mobility of the molecular structure, which enable sterili
