The invention relates to fountain emulsion and a preparation method thereof. The fountain emulsion is prepared from raw materials of isostearyl alcohol, butylene glycol cocoate, ethylcellulose, caprylic/capric triglyceride, isopropyl myristate, cyclopentasiloxane, glycerine, xanthan gum, acrylic acid (acrylic ester) type/C10-30 alkanol acrylic ester crosspolymers, triethanolamine, 1,2-hexanediol,1,2-pentadiol, hydroxyacetophenone, sodium hyaluronate, citrus medica limonum (lemon) fruit water, fagus sylvatica bud extracts, honeysuckle flower extracts, sweet basil herb extracts, grapefruit fruit extracts, usnea barbata extracts, polyethylene glycol-90M, sodium polyacrylate, sodium polyacryloyldimethyl taurate, propylene glycol and deionized water. All in all, the fountain emulsion disclosedby the invention can enable skin to be free from invasion, resist pollution, replenish water, lock water, brighten skin color and protect the skin from being hurt by environment, is suitable for sensitive skin and muscle, and has high moisturizing capacity.