The invention discloses a dust-proof and moisture-proof film for building decoration. The dust-proof and moisture-proof film comprises a dust-proof and moisture-proof film main body, wherein the dust-proof and moisture-proof film main body comprises a self-cleaning layer, an anti-corrosion layer, a moisture-proof layer, an antistatic layer, a fire-proof layer, a printed layer, a PET layer and an adhesive layer, wherein the printed layer is arranged above the PET layer; the fire-proof layer is arranged above the printed layer; the antistatic layer is arranged above the fire-proof layer; the moisture-proof layer is arranged above the antistatic layer; the anti-corrosion layer is arranged above the moisture-proof layer; the self-cleaning layer is arranged above the anti-corrosion layer. According to the dust-proof and moisture-proof film for building decoration, by the arrangement of the printed layer, various types of patterns can be set on the printed layer, so that the design and the color can be diversified; furthermore, a designed pattern is novel and attractive; the pattern can be designed according to the requirement of a user; meanwhile, the length of each roll of product is 5,000 m to 6,000 m, so that the warehousing space can be greatly reduced for storage, long-distance transportation is more convenient and safer, and the transportation cost is lower; moreover, by the arrangement of the self-cleaning layer and the moisture-proof layer, the moisture and dust prevention performances are greatly improved.