The present application relates to a daily chemical essence, and discloses a citrus flavor essence and a preparation method and application thereof. Citrus flavors include limonene, linalool, dihydromyrcenol, gliclasco dioxane, hydroxycitronellal, citrus aldehyde, lily of the valley aldehyde, new jasmonal, isomethyl ionone, leaf alcohol acetate Esters, Geranyl Acetate, Linalyl Acetate, Patchouli Oil, Lemon Oil, Fropie, Vetiver Oil, Coriander Seed Oil, Modifiers, Fragrances, Fixatives, Solvents. The preparation method is as follows: step 1, stirring and dissolving the fragrant raw materials while heating, then refluxing, and then stirring until dissolved to obtain a preliminary citrus flavor essence; step 2, leaving the preliminary citrus flavor essence to stand to obtain a mature citrus flavor essence; step 3 , and filtering the ripened citrus flavor essence to obtain citrus flavor essence. The citrus flavoring essence of the present application can be used in daily chemical products, and has the advantages of stable aroma and not easy to change color; in addition, the preparation method of the present application has the advantages of more stable aroma and color of the essence.