The invention discloses a snail hydrating and restoring facial mask and a preparation method thereof. The snail hydrating and restoring facial mask is prepared from the following raw materials in parts by weight: 50-60 parts of water, 0.1-0.5 part of allantoin, 5-10 parts of glycerol, 1-10 parts of butanediol, 1-10 parts of pentanediol, 0.1-0.3 part of methylparaben, 0.05-0.3 part of sodium hyaluronate, 0.1-0.3 part of carbopol, 0.05-0.3 part of xanthan gum, 1-4 parts of trehalose, 1-4 parts of a seaweed extracting solution, 1-10 parts of a snail extracting solution, 2-8 parts of witch hazel distillate, 0.1-0.5 part of jojoba esters, 1-4 parts of glycine betaine, 1-4 parts of hydrolyzed vegetable proteins, 0.1-0.5 part of dipotassium glycyrrhizinate, 0.1-0.5 part of glycyrrhetinic acid, 0.1-1 part of stephania tetrandra extract, 1-4 parts of glucan, 0.1-3 parts of tranexamic acid, 1-4 parts of nicotinamide, 0.1-1 part of erythorbic acid, 0.1-3 parts of triethanolamine, 0.01-0.03 part of methyl isothiazolinone and 0.01-0.05 part of essence.