The invention belongs to the technical field of skin care products, and particularly relates to mask liquid with a repairing function and a preparation method thereof in order to solve the problems that in the prior art, flushing, red itching and slow skin healing are caused after a face operation, skin is dry, rough, loose and free of elasticity, pigmentation is likely to be generated, or scars are left and hard to heal. The mask liquid with the repairing function is prepared from, by weight, 1-15 parts of butanediol, 1-15 parts of propylene glycol, 0.1-1 part of xanthan gum, 0.1-1 part of EDTA, 0.1-1 part of allantoin, 45-96 parts of water, 3-20 parts of glucan, 0.1-2 parts of snail mucus extract, 0.01-0.3 part of drawing agent, 0.01-0.4 part of decoyl hydroximic acid, 0.5-3 parts of glycerol, 0.01-0.6 part of oligopeptides-1, 0.1-3 parts of the stem of noble dendrobium and 0.01-0.5 part of sodium hyaluronate. The preparation method of the mask liquid with the repairing function is further provided. All the components act together according to the matching relationship to achieve the functions of repairing, skin whitening and face skin regeneration promoting.