The invention discloses an antioxidant acne-removing repair essence and a preparation method thereof. The essence contains a plurality of plant extract essences, wherein cannabidiol (CBD) of a hemp extract has good effects of resisting bacteria, diminishing inflammation, removing acnes, relieving, resisting oxidation and the like. However, the CBD is insoluble in water, so that the application field and the bioavailability of the CBD are limited. According to the invention, the fat-soluble CBD is prepared into the nanoscale cannabidiol liposome, so that the water solubility and stability of the CBD are improved, the transdermal absorption effect of the CBD is promoted, the CBD can quickly and effectively penetrate through the surface layer of the skin, directly reach the deep layer of theskin and be slowly released, and the effect of the CBD is more lasting. The essence disclosed by the invention does not contain hormones, artificial pigments, essences and other components, is safe and mild in formula, and has multiple beautifying and skin-care effects of resisting oxidation, removing acnes, relieving, resisting bacteria, diminishing inflammation, efficiently moisturizing, smoothing fine lines and the like.