The invention relates to a nano rare earth zeolite coating. A nano material and functional groups are grafted by activating a microporous material and dispersing modified adsorbed nanoparticles; by means of physical action such as photocatalytic action and dipole moment, harmful substances, for example, TDI released by carbon monoxide, hydroxide, formaldehyde, benzene and polyurethane, in air aredecomposed and absorbed, so that the coating has the novel functions of removing smoke smell, odor, being mildewproof and antibacterial, killing bacteria and viruses, regulating temperature and humidity and purifying indoor air. Moreover, the coating releases negative ions and far infrared rays and diffuses plant fragrance permanently, and the color of the pattern is selected randomly. The coatingis bagged, so that the cost is saved. The materials are easily selected, and the coating is low in production cost, pollution-free, high in cost performance and high in scientific content. During construction, no glue is used, and the coating is directly sprayed, brushed, roll-sprayed and scrape-sprayed. The coating is good in adhesion, smooth in hand feeling, bright and flexible in feeling and comfortable and attractive. The coating is widely applied to the field of coating of buildings, and is suitable for the occasions such as habitable rooms, office rooms, hospitals, hotels and restaurants.