Structure of cigarette filter

The utility model discloses a structure of a cigarette filter, comprising a cigarette filter rod, wherein a wrinkled paper layer is covered on the cigarette filter rod, and the outer surface of the wrinkled paper layer is provided with a plurality of grooves which are distributed along the axial direction of the cigarette filter. After the structure is adopted, the structure of the cigarette filter has the advantages that 1, according to the groove cigarette filter rod, the grooves are incomparable in appearance quality, and the structure of the cigarette filter is developed for providing the unique appearance to the cigarette; 2, the length of each groove is only a part of the length of the cigarette filter, so that the smoke can pass through a half-wrinkled layer at the tail end of the extruded groove, i.e. a transverse flow filtering mechanism which has the extremely high filtering effect to the tar and the nicotine, therefore, the groove cigarette filter rod is better in performance; and 3, the distinctively different appearance of a lip end can be obtained, so that the uniqueness of products can be improved, the structure of the cigarette filter can be used for the anti-fake performance, and the identifiability of the products can be enhanced.