Rare earth antibacterial glaze is a kind of ceramic glaze with rare earth elements as additives, which has antibacterial function. Rare earth elements are used to introduce lattice defects into zinc oxide whisker crystals, and by improving photocatalytic efficiency, organic substances that constitute bacteria can be decomposed quickly and effectively, thus achieving antibacterial effect. This kind of glaze is usually used in ceramics, tiles, etc., which has a good effect on improving the sanitary environment at home, effectively preventing the growth of bacteria and making families healthier.