The invention discloses a carbon fiber negative ion transmitting end. The carbon fiber negative ion transmitting end comprises a metal head and carbon fiber bundles; the transmitting end is characterized in that the metal head adopts a two-section structure; jacks for plugging the carbon fiber bundles are formed in the front section of the metal head; screw hole sections are formed in the jacks; the jacks are further used for fixing the carbon fiber bundles through a tin soldering manner; the back section of the metal head adopts an external thread structure; and the back section is used for forming fixed connection with a terminal board; preferably, the jacks are blind holes; the periphery of the front section of the metal head adopts an external hexagonal structure; and the far end of the back section of the metal head adopts a frustum structure. The carbon fiber negative ion transmitting end has the beneficial effects that the carbon fiber bundles at the transmitting end are firmly welded; reliable connection between the transmitting end and the terminal board is achieved; and in addition, the carbon fiber negative ion transmitting end is simple in structure, convenient to detach, high in production efficiency and high in reliability, and the hidden trouble of loosening or falling off of the carbon fiber bundles in the usage process is prevented.