The invention discloses a skin-whitening skin-tendering freeze-dried facial mask containing adenium obesum essence and a preparation method thereof. The facial mask contains freeze-dried powder. The freeze-dried powder comprises the following components: 0.1-15 parts of adenium obesum leaf cell extract, 0.1-5 parts of hydroxyethylurea, 0.5-5 parts of PEG/PPG/polybutylene glycol-8/5/3/glycerol, 0.1-5 parts of glycerol, 0.1-8 parts of sodium hyaluronate, 0.5-5 parts of a natural thickener, 0.1-5 parts of papain, 0.1-3 parts of calcium pantothenate, 0.1-3 parts of urea, 0.1-5 parts of caprylyl glycol, 0.1-5 parts of amino acids, 0.1-5 parts of moisturizing factors, 0.1-5 parts of ethylhexylglycerin and 5-60 parts of water. After being used, the freeze-dried facial mask disclosed by the invention makes the skin healthy, white, fine, smooth and compact, and can delay aging, repair damaged cells and enhance the resistance of the skin with long-time use.