The invention discloses a high-strength building composite ceramic material and a preparation method thereof. The high-strength building composite ceramic material is prepared from the following raw materials in parts by weight: 20-35 parts of red mud, 20-30 parts of zirconium n-butoxide, 15-30 parts of wollastonite, 10-20 parts of argil, 8-15 parts of industrial waste, 13-23 parts of reinforcing fiber, 20-35 parts of polybutadiene epoxy resin, 8-12 parts of flint clay, 9-15 parts of dibutyl phthalate, 3-7 parts of polyethyleneglycol, 10-16 parts of aluminum oxide, 5-10 parts of ceramic pigment, 10-12 parts of surfactant and 5-10 parts of non-toxicity plasticizer. By effectively proportioning the red mud, zirconium n-butoxide, wollastonite, argil, industrial waste, polybutadiene epoxy resin, flint clay and dibutyl phthalate, the reinforced ceramic has high strength and favorable compactness, has excellent comprehensive properties, has favorable oxidation resistance and corrosion resistance effects, and is favorable in use effect, environment-friendly, nontoxic and odorless. The product is low in production cost, can easily realize large-scale production and can be made into multiple shapes and textures; mineral resources are saved; and the product is low in price and simple in production process.