Abstarct: In recent years, aluminum mextal matrix composites (MMCs) used for tribological components have attracted more and more interests. They are widely used as in the automotive and aerospace industries, like high speed rotating or reciprocating mass items such as pistons, connecting rods, drive shafts, brake rotors, cylinder bores and … . Compared with the corresponding monolithic alloys, aluminum matrix composites are attractive because of their improved strength, stiffness, creep behavior, wear resistance and low thermal expansion. Recently, more and more evidence shows that the mechanical properties of mextal matrix composites can be enhanced significantly by adding nano-sized ceramic particle. In this study, synthesis and characterization of the composite and nanocomposites of Al/SiC-Al2O3, Al/SiC and Al/Al2O3 were investigated. The high energy ball milling and impregnation method was used to prepare composite and nanocomposite. The microstructure and phases of the prepared composites and nanocomposites were investigated by using XRD and SEM. The mechanical properties (hardness) were investigated by Vickers. The results showed that nanocomposites improve mechanical properties. In this study by the high energy ball milling decreasing particle size of Al/SiC powders to 35 nm. The result of Vickers microhardness showed that Vickers microhardness of nanocomposite higher than composite and Vickers microharness hybrid nanocomposite Al/SiC-Al2O3 higher than composite Al/SiC and Al/Al2O3 with same weight percents.