Abstract: In order to recover aluminum from aluminum matrix composites,the appropriate compound salt was prepared and the removal behavior of reinforcing materials from particle reinforced aluminum matrix composites was investigated experimentally by using molten salt process. The recovery of aluminum was measured by microscopic test and X-ray diffraction(XRD).The results indicate that the reinforcing materials can be eliminated from aluminum matrix composites by some molten salts,and the recovery ratio is about 85%.