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The matrix accumulative roll bonding technology (MARB) can improve the matrix performance of metal composite and strengthen the bonding quality of the interface. In this research, for the first time, the technology of MARB was proposed. A sound Cu/Al bonding composite was obtained using the MARB process and the bonding characteristic of the interface was studied using scanning electricity microscope (SEM) and energy-dispersive spectroscopy (EDS). The result indicated that accumulation cycles and diffusion annealing temperature were the most important factors for fabricating a Cu/Al composite material. The substrate aluminum was strengthened by MARB, and a high quality Cu/Al composite with sound interface was obtained as well.