The invention discloses a fructus phyllanthi porous particle for a cigarette filter and an application of the porous particle. Fructus phyllanthi serves as a raw material, the raw material is pulped and super-finely grinded, acquired mixture is processed by combining compound enzyme, processed mixture is freeze-dried to obtain fructus phyllanthi powder, fungal polysaccharide serves as a binding agent, and top spraying is performed by a fluidized bed to prepare the fructus phyllanthi porous particle. 1-2 mg of particles are applied into the cigarette filter per millimeter in the production process of compound cigarette filters, the contents of phenol and crotonic aldehyde in cigarette smoke can be effectively reduced, and the porous particle has double functions of increasing flavor and keeping humidity. The fungal polysaccharide serves as the binding agent, loss of flavor substance in the particle making process can be effectively made up, flavor content in a cigarette is remarkably increased, fine and smooth degree and sweet feeling of the smoke are obviously improved, and oral comfort is improved. The acquired particle furthest keeps flavor substances of the fructus phyllanthi and has the functions of relieving throat discomfort, promoting fluid, quenching thirst and the like. The particle is simple in production process, convenient to operate and low in cost and has good application values, raw materials are easily acquired, and industrial production is conveniently achieved.