The invention discloses a method of making an interior decoration material, an active material and a manufacturing method thereof, and the active material can be used to make an article inside a car and a furniture, wherein the method of making the interior decoration material that can eliminate an odor and a harmful gas has an interior decoration active material that releases a far infrared ray having a wavelength of 5-15 and can ionize negative ions in the air, has a surface air ion concentration reaching 3000-15000/cc or more, and has a function of rapidly eliminating and decomposing the odor such as methanal, benzene a smell of smoke and the harmful gas, and is obtained by preparation by subjecting raw materials to blending and drying, and the respective constituent raw materials and contents thereof during the blending are as follows: 100 parts of resin, 5-30 parts of Maifan stone powder, 5-10 parts of quartz powder, 5-30 parts of tourmaline powder, and 1-5 parts of rare earth, and the mass part of the resin is taken as a standard.