More particularly, the present invention relates to an IHPA (Ionized Hydrogen Peroxide Aerosol) controller using a magnetic field, comprising: a hydrogen peroxide solution storage and supply unit for storing and supplying a hydrogen peroxide solution； A spray device having a spray nozzle for spraying the hydrogen peroxide solution in the form of mist through the spray nozzle by receiving the hydrogen peroxide solution from the hydrogen peroxide solution storage and 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)； A plasma power supply for supplying power to a plasma electrode of the plasma generator to cause a plasma discharge in the plasma generator； And a magnetic field supply unit for applying a magnetic field to the droplet that receives the plasma energy in the form of hydrogen peroxide aerosol ionized through the plasma electrode of the plasma generator unit to control the direction of dispersion. According to the IHPA controller using the magnetic field proposed in the present invention, the magnetic field supply unit is configured to control the direction in which the magnetic field is applied to the hydrogen peroxide aerosol ionized by the plasma generator unit, It is possible to easily adjust the diffusion direction by applying a magnetic field to a water droplet that receives plasma energy in the form of ionized hydrogen peroxide aerosol. In addition, according to the present invention, the magnetic field can be applied to the ionized and positively charged water droplets as active oxygen species so that the diffusion direction can be adjusted, so that it can exist in a fine space between the inside of the room and the equipment requiring clean sterilization management It is possible to improve the original activity of the infiltrati
