The invention discloses an anti-aging hydrating mask and a preparation method thereof. The anti-aging hydrating mask is prepared from the following raw materials: polyvinyl alcohol, glycerinum, propylene glycol, sorbitol, a polyvinyl acetate emulsion, glycine betaine, hydrogenated lecithin, xanthan gum, guar gum, Carbomer, sodium trehalose, dipotassium glycyrrhizinate, soluble protein polysaccharide, arginine, platinum powder, beta-glucan, resveratrol, sodium hyaluronate, denatonium benzoate, inositol hexaphosphoric acid, silver oxide, volcanic powder, kieselguhr, tetrasodium pyrophosphate, pure water, fatty alcohol-polyoxyethy, sodium alginate, a xanthic gum, lucid Ganoderma, 4-methyl hydroxybenzoate, vitamin E and sodium methyl cocoyl taurate. The anti-aging hydrating mask is prepared through the steps of preparing powder, preparing a base material, modifying, sterilizing, disinfecting and the like. The SOD (Superoxide Dismutase) content of the mask and the kill ratio of acarids canbe improved, so that the mask provided by the invention has an excellent anti-aging efficacy.