Fecha de publicación: -- Fuente: WIPO "tomato" The present disclosure provides a bionic superhydrophobic porous ceramic for planting plants under water and a preparation method thereof. The ceramic comprises: aluminum oxide powder; silica; and aluminum fluoride. The preparation method comprises: mixing and milling aluminum oxide powder, silica and aluminum fluoride; after milling, adding the sample with water to prepare a slurry, and pouring the slurry into a mold to form a porous ceramic green body; drying the porous ceramic green body, heating at 1100° C.-1500° C., and then cooling to obtain the bionic superhydrophobic porous ceramic with a mullite whisker structure; immersing the porous ceramic with the mullite whisker structure in 1-5 wt % n-hexane solution of polydimethylsiloxane, and then heating at 100° C.-500° C. to obtain the bionic superhydrophobic porous ceramic.