In this study, copper metal matrix composites (CMCs) loaded with cerium oxide nanoparticles were subjected to the friction stir method (FSP). The CMCs have several desirable qualities, such as their portability, power, growth potential, and innate intelligence. Friction stirs processed surface composites (FSP-ed) parameter optimization using the Taguchi method is also the subject of this investigation. In terms of hardness and tensile strength, this method analyzed the optimal combination of the process parameters and delivered the optimal solution. The optimal tensile strength and hardness of the material, respectively, have been discovered to be 104.043 VHN and 440 MPa. The best settings were 1200 rpm for the rotation, 35 mm/min for the transverse, and 3 passes for each direction.