▎ 摘　　要

NOVELTY - The connecting device (1) has a terminal main portion whose specific end is provided with a graphene cable jack (2), digital signal output channel (6) and electric power output channel (7). The graphite cable jack is connected with a locking device (3). A portion of graphene cable (9) and optical fiber coupler (4) is connected with a portion of digital signal output channel. A cable conducting layer is combined with an electric power channel. An outer side of main portion is provided with an insulation protection layer (8). USE - Connecting device of graphene electrical cable used in electric power and information transmission fields. ADVANTAGE - The transmission efficiency, graphene intensity and service life of connecting device is improved. The precision and safety of graphene electrical cable is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the connecting device of graphene electrical cable. Connecting device of graphene electrical cable (1) Graphene cable jack (2) Locking device (3) Optical fiber coupler (4) Digital signal output channel (6) Electric power output channel (7) Insulation protection layer (8) Graphene cable (9)