The invention provides a mask taking tremella as a main raw material. The mask comprises the following components in parts by weight: 50-60 parts of fresh tremella, 2-8 parts of carboxymethylcellulose, 2-8 parts of carrageenan, 3-9 parts of sodium alginate, 6-9 parts of chitosan, 0.1-0.2 part of gypsum, 4-8 parts of coix seed powder, 0.1-0.3 part of a preservative and 0.4-1 part of 3D printing glue; the preservative is selected from one of methylparaben, propylparaben and phenoxyethanol. The raw materials of the mask are allowable additives of cosmetics, are basically edible raw materials, and have no stimulation on skins; tremella filtering dreg and tremella filtrate have the effects of whitening skin and keeping moisture, and are combined with the coix seed powder, so that the effects of whitening and moistening skin are realized cooperatively.