The invention discloses an anion plate for house decoration. The anion plate comprises a surface plate body and a middle plate body, wherein the surface plate body is made of, by mass, 8-15 parts of magnesium oxide, 8-15 parts of a magnesium sulfate solution, 0.5-1 part of coal ash, 2-5 parts of liddicoatite tourmaline, 0.1-0.3 part of monazite, 1-3 parts of zeolite, 0.1-0.5 part of calcium stearate and 0.3-1 part of zinc oxide; the middle plate body is made of, by mass, 15-35 parts of magnesium oxide, 15-35 parts of a magnesium sulfate solution, 1-3 parts of coal ash, 6-12 parts of wood chips and 0.5-1 part of a compound modifying agent. The anion plate is simple in manufacturing process, solid waste is utilized, raw materials are low in price, and the anion plate has durability, high efficiency and environmental protection performance and is an environment-friendly interior decoration plate for a building.