Abstract: The chemical etching technique was applied to prepare surface texture of SiC/Al composites. The microtopography characteristics and wetting behaviors of the etched surfaces as well as their dependencies on etching time were analyzed by SEM and a contact angle meter. The temperature shock resistance of the SiC/Al superhydrophobic surfaces were evaluated by thermal shock tests. The results indicate that SiC/Al composite can be easily etched chemically to form distinct hierarchical structures integrating particle-shaped microstructures and nano-sized pit structures mainly due to the existence of SiC microparticles served as the bodies of microstructure, the etched surfaces modified by fluorosilane coating show excellent superhydrophobicity with a water contact angle of up to 166.8° and a small slide angle of as low as 3°, the SiC/Al superhydrophobic surfaces possess a favorable temperature shock resistance.