简要介绍了SiC晶须和Al2O3短纤维混杂增强铝基复合材料的制造工艺，并对材料的力学性能进行了测试，对金相组织和扫描断口进行了观察。结果表明，用该工艺制造出增强剂分布均匀的复合材料，材料的性能尤其是高温抗拉强度有了较大幅度的提高，复合材料中晶须和短纤维的增强机理明显不同。该材料有望在大功率发动机活塞上得到应用。 The manufacturing process of SiC whisker and Al2O3 short fiber hybrid reinforced aluminum matrix composite was briefly introduced. The mechanical properties of the composite were tested. The microstructure and scanning fracture were observed. The results show that the composite material with uniform distribution of reinforcing agent produced by this process has a great improvement in properties, especially the tensile strength at high temperature. The reinforcing mechanism of whiskers and short fibers in the composite material is obviously different. The material is expected to be used on high-power engine pistons.