Oak bark applications and one functional plug additive and preparation method and application

The present invention discloses the use of plug and one functional additive and preparation method and use of oak bark, the present invention is as a cigarette filter by adding a binder component and oak bark tobacco and / or tobacco stem powders, tobacco flavor combined into an additive in a cigarette filter and cigarette smoke flavoring reduced tar content in the flue gas; preparation of cigarette filter additives are after oak bark powder and tobacco and / or tobacco stem powders uniformly mixed and dissolved further mixed with a binder and an aqueous smoke flavor, spray drying, sieving, to obtain; the cigarette filter additives can effectively reduce tar in cigarette smoke, the composite to increase smoke flavor, while a cigarette filter can be improved molding processing property, and preparation method is simple, readily available raw material, low production cost, to meet industrial production.