The invention discloses a preparing method for anti-oxidation colorful zirconite fireproof bricks. The anti-oxidation colorful zirconite fireproof bricks are prepared from mixed materials, a binding agent and an antioxidant in a sintered mode; the preparing method includes the following steps of 1) mixed material preparing; 2) mixed slurry preparing; 3) to-be-sintered brick preparing; 4) colorful zirconite fireproof brick preparing; 5) brick finishing; 6) anti-oxidation brick blank preparing; 7) anti-oxidation colorful zirconite fireproof brick preparing. By means of the anti-oxidation colorful zirconite fireproof bricks prepared with the method, dyeing of zirconite fireproof bricks is achieved, and an important supplement for neutral-color zirconite fireproof bricks is achieved; the anti-oxidation colorful zirconite fireproof bricks have the advantages of being durable, resistant to high temperature, corrosion and abrasion, low in heat conduction, excellent in thermal shock resistance and the like.