The invention discloses a preparation method of anti-static carbon fibre functional composite paper. The preparation method comprises the following steps: crushing wheat straw and waste paper, addingwater, standing, draining, soaking in a potassium hydroxide solution, steaming in a manner of insulating from water, drying, performing wet ball milling, concentrating, pulping, and performing papermaking to obtain blank paper; mixing waste paper and the potassium hydroxide solution, standing at a room temperature, then heating and stirring, performing suction filtration, washing a filter cake, drying to reach constant weight, adding a sepiolite powder, dodecyl ammonium chloride and silver nitrate solution, regulating the pH value of the system to be 6.4 to 6.8, stirring uniformly, adding a silane coupling agent KH-550, stirring uniformly, performing ultraviolet irradiation treatment, filtering, washing with deionized water, drying, and crushing to obtain a composite antibacterial agent; uniformly mixing graphite, carbon black, a coconut shell carbon powder and the composite antibacterial agent, adding an anti-static agent, a dispersing agent and an adhesive, mixing uniformly, concentrating, coating the surface of the blank paper with the mixture, drying, applying the adhesive to double surfaces, drying a finished product, and rolling paper.