In this study, we successfully developed a novel approach for the scalable production of highly conductive PEDOT-graphene films by utilizing a modified solvent interfacial trapping method (SITM) to exfoliate large-flake graphite. By employing overlapping graphene sheets as a template for vapor-phase polymerization (VPP) of EDOT, we achieved films with conductivities exceeding 1070 S/cm, surpassing those of comparable films previously reported. Our method circumvents the limitations associated with conventional methods, such as tip sonication and reducing oxidized graphene, thereby preserving the integrity and large lateral size of the graphene sheets.