Copper is renowned for its exceptional electrical and thermal conductivities, which are essential for various advanced applications. Its application, how-ever, is often constrained by its comparatively low mechanical strength. Traditional copper strengthening techniques, including alloying, typically reduce its conductivity. In response, this study investigates a novel approach to enhancing copper-based materials through the the integration of graphene—a two-dimensional nanomaterial known for its exceptional charge carrier mobility and atomic-scale reinforcement capabilities. The hierarchical configuration of graphene-Cu (Gr-Cu) composites was achieved via chemical vapor deposition (CVD) and subsequently processed into wire samples. This re-search meticulously examines the microstructural evolution within these composites throughout their fabrication, revealing that the resultant annealed Gr-Cu wires not only retain an electrical conductivity of 102.3% Internation-al Annealed Copper Standard (IACS) but also exhibit a tensile strength of 216 MPa. These findings demonstrate that graphene can substantially bolster the mechanical strength of copper without diminishing its electrical performance. The study further underscores the critical need to refine graphene dispersion and enhance the density of the matrix, thereby providing a promising avenue for advancing the development of copper-based composites that do not compromise between strength and conductivity