SiCnw/pure Al composites were designed to minimize the effect of the alloying elements. SiC nanowires and Al matrix was well bonded and free of interfacial reaction product. Strengthening behavior of SiC-type reinforcements/Al composites has been discussed. Effective atom for load transferring was considered in the modified shear-lag model. Main research fields to utilize the strengthening effect of SiC nanowires were discussed.