The aerospace industry's constant desire to enhance the performance of commercial and military aircrafts is continually driving the development of improved high - performance structural materials. In recent years, Metal-matrix composites (MMC) have emerged as a promising class of materials. Especially, Aluminum composites with their unique thermal properties have enormous space and avionics prospects. Al-matrix composites have the potential of achieving significant weight and cost savings on aircraft structures. In this paper, the fabrication and properties of the Al-matrix composites and their scopes in aerospace industries will be reviewed in details. Besides, recently Hot lsostatic Pressed (HIPed) Al-matrix composites reinforced with steel fibers and its evaluating parameters will be discussed with microstructure changes and mechanical behavior.