Abstract: The metal materials (Mg, Al, Ti and alloys) and the reinforcing components (Carbon fiber, SiC whiskers, particles, etc.) used in forming metal matrix composites have great mismatch between their physical, chemical and mechanical properties. The study of fabricating Al/C fiber composites and using them as structural materials is becoming an important new field in material science. An investigation on the microstracture bonding technology is not only of great significance for the improvement of mechanical property and fabricating process of the composites but also of great importance to the bonding of composite to composite or to other materials in the foreseeable practical applications.