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This invention relates to the field of purification equipment technology, and particularly to a purification device for electronic-grade hydrogen peroxide, comprising: a tower body with an internal cavity penetrating the tower body; at least two sets of alignment tracks on the inner wall of the tower body, each track having a torsion section extending circumferentially along the tower body; multiple purification units, including a protective shell, a support slider, and a purification body; the support slider slides along the alignment track to the torsion section, and after the protective shell rotates, the support slider continues to slide along the alignment track through the torsion section; the purification body has an input component and an output component; a receiving unit is located at the bottom of the cavity, used to allow the bottommost purification unit to rotate out of the cavity and output; and a delivery pipeline detachably connected to the bottommost input component and the topmost output component. The electronic-grade hydrogen peroxide purification device provided by this invention can rapidly replenish resin according to production conditions and has good application value.