The utility model relates to a supersound champignon dust plug, be applied to electronic equipment on, it includes casing, smart oil storage jar, supersonic generator and outer plug, the housing comprises an upper housing body and a lower housing body, go up the casing with the inferior valve bodily form becomes confined accommodating space, smart oil storage jar with supersonic generator is fixed to be located in the accommodating space, outer plug with go up the casing or lower casing fixed connection to can insert in electronic equipment's the jack, be filled with essential oil liquid in the smart oil storage jar it has the venthole upward to open on casing and/or the lower casing. Be connected with electronic equipment through outer plug, drive supersonic generator makes essential oil liquid disperse. Can freely replace the essential oil bottle of different tastes, let user anytime and anywhere place oneself in the midst of and be full of aroma joyful environment, satisfy the customer demands who has deep love for fragrant atmosphere.