The invention belongs to the technical field of architectural ceramics, and particularly relates to an imitation raw gemstone ceramic tile and a preparation method thereof. The ceramic tile comprisesa green body material layer, a bottom glaze layer and a color-forming glaze layer, wherein the green body material layer is prepared from the following raw materials: Yantai porcelain clay, Rizhao clay, plaster strips, high-strength clay, high-aluminum clay, potassium feldspar, sodium feldspar, cooked coke, Hainan clay, Wenzu stone and pyrophyllite, the bottom glaze layer is prepared from the following raw materials: potassium feldspar, sodium feldspar, calcined clay, washed kaolin, calcined talc, quartz, zinc oxide, frit and zirconium silicate, and the color-forming glaze layer is prepared from the following raw materials: potassium feldspar, dolomite, corundum, zinc oxide, washed kaolin, barium carbonate, frit and whisker materials. The ceramic tile has the advantages that the hand feeling of the ceramic tile is close to that of raw gemstone, and the texture and the color are vivid; and the fire resistance is high, the frost resistance is high, the surface hardness can reach 5 levels, the skid resistance can reach R9 or above, the anti-fouling and anti-corrosion effects are achieved, and in addition, negative ions can be released. The preparation method has the advantages of being scientific, reasonable, simple and feasible.