The invention discloses plant moisturizing and restoring lotion and a preparation method therefor. The plant moisturizing and restoring lotion comprises water, glycerine, butanediol, a gentian extract, a radix ginseng extract, a baobab fruit pulp extract, panthenol, a grape pip extract, coffeine, cyclodextrin, a chlorella vulgaris extract, a saccharomycete lysate extract, a composite tartaric acidextract, relaxing antiallergic fluid, carnosine fluid, tranexamic acid, palmitoyl hexa-peptide-12 fluid, palmitoyl tetrapeptide-7 fluid, olea europaea fruit oil, moisturizing antibacterial agent, 1,2-pentanediol, hydrolyzed sodium hyaluronate, wallantoin, sclerotium gum, PEG-40 hydrogenated castor oil, sweet orange essential oil, disodium edetate and nicotinamide, wherein the composite tartaric acid extract is prepared through mixing water, a sugar cane extract, a common bilberry fruit/leaf extract, a sweet orange fruit extract, a sugar maple extract and a citron fruit extract. The lotion disclosed by the invention has the effects of moderately removing cutin, improving skin color, whitening and fighting against senium.