The invention provides a fragrance essence with bacteriostatic efficacy components and a preparation method thereof. The fragrance essence with bacteriostasis effect is prepared from acetaldehyde, hydroxycitronellal, pinene, sabinene, beta-myrcene, limonene, leaf alcohol, ligustral, benzaldehyde, linalool, Bergapten, caryophyllene, linalyl acetate, beta fenchyl alcohol, anthemene, Neryl propionate, Florol, benzyl acetate, geranyl acetate, citronellyl acetate, nerol, methyl salicylate, ethyl salicylate, ethyl salicylate, Beta Damascone, phenethyl alcohol, allyl amyl glycolate, ionone, methyl anthranilate, watermelon ketone, Ambrox, Methyl dihydrojasmonate, isoeugenol, thyme oil, eugenol and the like. The fragrant raw materials used are convenient in sources, and the obtained essence has thefragrance characteristics of fresh fragrance, flower fragrance, fruit fragrance and pungent fragrance, and also has the fresh feeling of forests and nature, the overall fragrance is fine and smooth,and the fragrance essence has bacteriostatic effect.