The objective of this study is to investigate factors that affect the preparation of graphene via laser induction technology using DuPont plain 1500D aramid fiber as a carbon-containing precursor. Graphene coating is prepared on the surface of aramid fiber via laser induction technology, and the effects of laser power, scanning speed, and defocusing degree (the distance between the laser lens and sample) on the graphene preparation process are systematically investigated. This is expected to yield a reliable graphene coating on the surface of aramid fiber, thus enabling the in-situ detection and interface toughening of aramid-fiber laminates via the excellent electrical conductivity and microscopic pore structure of graphene. The laser-induced aramid fibers are analyzed via Raman spectroscopy and electron microscopy. Experimental results show that under 12 W of power, 300 mm/s of scanning speed, and 14 mm of defocusing degree, the Raman spectra of the products based on the surface of the aramid fiber show typical graphene characteristics. This indicates that the surface of the aramid fiber successfully yields a good structure of graphene, and that the laserpower, scanning speed, and defocusing degree affect the creation of graphene.