An embodiment of the present invention provides an environment-friendly functional material and a preparation method thereof, a display structure forming material, a color film substrate and a display device. The functional material comprises inorganic mixed powder, the inorganic mixed powder comprising a main material and an auxiliary material, the main materials comprising boron oxide, sodium oxide, lithium oxide, and zirconium oxide, the auxiliary materials comprising any one or more of aluminum oxide, zinc oxide, titanium dioxide, silicon dioxide, calcium oxide, silver complex, silver phosphate, silver nitrate, tourmaline, silver thiosulfate, carbon nanotube, aluminum sulfate, manganese, oxides of manganese, iron, oxides of iron, cobalt, oxides of cobalt, nickel, oxides of nickel, chromium, oxides of chromium, copper, oxides of copper, magnesium oxide, boron carbide, silicon carbide, titanium carbide, zirconium carbide, tantalum carbide, molybdenum carbide, boron nitride, chromium nitride, titanium nitride, zirconium nitride, aluminum nitride, chromium boride, trichromium tetraborate, titanium boride, zirconium boride, tungsten disilicide and titanium disilicide.