▎ 摘　　要

NOVELTY - The method comprises (i) uniformly paving the carbon fiber yarn raw fiber on two rollers in the plasma enhanced chemical vapor deposition cavity and fixing the carbon fiber end on the driving roller; (ii) arranging a positive and cathode plate parallel to the carbon fiber yarn original fiber up and down; (iii) vacuumizing the plasma enhanced chemical vapor deposition cavity; (iv) mixing the hydrogen or nitrogen with the carbon-containing gas i.e. methane, introducing into the vacuum cavity and maintaining a certain pressure; (v) starting the direct current power supply and generating gas dissociation deposition energy to form plasma; (vi) peforming continuous plasma reaction, starting the driving roller and slowly moving the carbon fiber; and (vii) closing the direct current power supply, reducing the cavity temperature to room temperature, closing the vacuum pumping system and opening the vacuum cavity to obtain the vertical graphene carbon fiber composite. USE - The method is useful for preparing vertical graphene carbon fiber composite. ADVANTAGE - The method increases the carbon fiber surface area, improves and strengthens the carbon fiber interface performance, and produces a strong mechanical meshing force with the resin matrix.