The invention relates to camellia japonica extract-containing multi-effect nourishing facial mask essence and a preparation method and application thereof. The invention belongs to the field of skin care products. The invention aims to solve the technical problems of skin damage caused by chemical residues after long-term use of current commercially available facial masks and single functional component of the commercially available facial masks. The facial mask essence comprises water, camellia japonica extract, squalane, octacosanol, astaxanthin, yeast extract, rosemary leaf oil, rosemary extract, glycerin, butanediol, betaine, cetearyl olivate, sorbitan olivate, allantoin, sodium hyaluronate, sodium alginate, ethylhexylglycerin, caprylyl glycol, hydroxyethyl cellulose and p-hydroxyacetophenone. The facial mask essence is rich in various plant essence components and has the effects of brightening skin color, astringing and moisturizing, relieving skin and the like, and particularly, the camellia japonica extract is added, so that collagen synthesis can be effectively promoted, the skin can be tightened, the skin vitality can be enhanced, and the skin is moisturized and nourished and is rich in elasticity.