The invention discloses a white shading ceramic. The white shading ceramic comprises a top layer containing at least one compact ceramic layer, a middle layer containing at least one porous ceramic layer, and a bottom layer containing at least one compact ceramic layer. The white shading ceramic includes a multilayer structure (the top layer, the middle layer and the bottom layer), the middle layer contains at least one porous ceramic layer, and the porous material has high light refraction index, so the shading ceramic has the advantages of improved refraction index, realization of a repeated refraction effect, increased whiteness and light transmittance, and good surface shading effect. The invention also discloses a preparation method of the white shading ceramic.