Application of puer tea amino acid in cigarette filter stick

The invention discloses an application of puer tea amino acid in a cigarette filter stick. Puer tea amino acid and puer tea digesting powder after being uniformly mixed are made into puer tea amino acid containing composite filter stick particles through a granulating process to be directly added into the filter stick; the puer tea amino acid is prepared into an aqueous solution used for dip-coating a core wire at the axis of the filter stick; or the puer tea amino acid after being subjected to micro-encapsulation is added into filter stick tows to be made into a composite filter stick. After the puer tea amino acid is applied to the cigarette filter stick, the sweet and continuous taste of the cigarette can be added, the smoke enjoyment and richness are improved, miscellaneous odor and irritation are reduced, and comfort level for cigarette smoking is increased.