Method for uniform glow discharge in atmosphere air

This invention relates to a method for realizing uniform glow-discharge in air under the atmospheric pressure, which utilizes an additive plasma source without circuit connection with the high frequency capacitor medium block discharge device to inject initial plasmas to the discharge space and increase charge density to realize uniform glow discharge in air under the atmospheric pressure. When the medium block air gap distance is 2-6 mm, it generates uniform glow discharge and eliminates the thread phenomenon.