A diatom ooze decoration material is disclosed. Raw materials of the decoration material include, by weight, 30-50 parts of diatomite, 7-13 parts of bentonite, 10-20 parts of calcined kaolin, 3-8 parts of modified nanometer bamboo charcoal powder, 6-14 parts of mica powder, 5-10 parts of titanium dioxide, 1-2 parts of hydroxypropyl methyl cellulose, 3-5 parts of anti-cracking fibers, 4-9 parts of graphene oxide, 2-3 parts of a tourmaline powder anion additive, 7-11 parts of a modifier, 1.5-2.5 parts of a dispersant, 6-13 parts of an inorganic adhesive, and 0.5-1.5 parts of a catalyst-grade nanometer zinc oxide. The decoration material has characteristics of zero VOC, and capability of being temperature-resistant, fireproof and wear-resistant, has a plurality of functions, such as a breathing function and a function of adsorbing formaldehyde, toluene and other organic matters, has stable performance and long effective service lifetime.