The invention is suitable for the technical field of mask preparation, and provides a pure natural primary liquid mask and a preparation method thereof. The mask is prepared from the following components in percentage by mass: 20 to 40 percent of collagen paste, 14 to 18 percent of soybean paste, 12 to 16 percent of radix ginseng paste, 5 to 6 percent of Chinese angelica paste, 5 to 6 percent of almond powder, 5 to 6 percent of egg white, 5 to 6 percent of edible butter, 4 to 5 percent of bee milk, 4 to 5 percent of olive oil, 1 to 2 percent of ganoderma juice, 1 to 2 percent of cornua cervi pantotrichum juice, 1 to 2 percent of licorice root juice, 1 to 2 percent of common bletilla tuber juice, 1 to 2 percent of rhizoma zingiberis recens juice and 1 to 2 percent of lemon juice. The preparation method of the mask specifically comprises the following steps: (1) cleaning the raw materials; (2) soaking the raw materials; (3) preparing a semi-finished product; (4) preparing a finished product; (5) storing. According to the pure natural primary liquid mask, the components comprise food, plants, traditional Chinese medicines and fruits; after the mask is used for a long time, skin can be clean, watery, white, bright, fine, smooth, soft and tender, wrinkles around the lip, under-eye puffiness and nasolabial folds can be reduced and controlled, regeneration of age pigment and chloasma can be reduced and inhibited, and whelk, acne, seborrheic dermatitis, comedo and the like can be treated.