The invention discloses an environmental-friendly 
tourmaline composite home decoration material. The environmental-friendly 
tourmaline composite home decoration material comprises the following raw materials in parts by weight: 2-20 parts of 
tourmaline powder, 20-80 parts of 
slag, 2-10 parts of 
activated carbon, 5-40 parts of a binding agent, 1-40 parts of an accessory and 0.1-0.3 part of an air entraining agent. The invention further discloses a preparation method of the material. By mainly utilizing various excellent characteristics of tourmaline, the prepared home decoration material has functions of releasing negative 
oxygen ions and emitting a 
far infrared ray, the problem of potential threats to a 
human body caused by an existing home decoration material is greatly changed, a great number of negative 
oxygen ions can be released, 
formaldehyde, peculiar smells and the like can be absorbed, dust and other 
small molecule compounds in air can be adsorbed, and the effects of purifying indoor environment and killing and inhibiting 
bacteria are achieved; moreover, a main body part is prepared by using the flag and 
Portland cement, and the material is low in price, easy to obtain, high in 
mechanical strength, light in weight, reusable, wide in application prospect and suitable for popularization and application.