▎ 摘　　要

NOVELTY - Preparing glass composite fiber comprises e.g. preparing graphene derivative solution, then coating the graphene derivative solution, moving the composite fiber at a set speed by a microwave heating zone in a set atmosphere, converting the graphene derivative layer of the shell layer into a graphene layer by heating for a set time of microwave, taking the composite fibers from microwave heating zone and cooling, subjecting the composite fibers to extrusion treatment to obtain final product. USE - The method is useful for preparing glass composite fiber (claimed). ADVANTAGE - The method is easy to realize mechanized continuous production. DETAILED DESCRIPTION - Preparing glass composite fiber comprises preparing graphene derivative solution, then coating the graphene derivative solution to obtain composite fiber core as graphene derivative layer is glass fiber shell as a graphene derivative layer, then moving the composite fiber at a set speed by a microwave heating zone in a set atmosphere, converting the graphene derivative layer of the shell layer into a graphene layer by heating for a set time of microwave, taking the composite fibers from microwave heating zone and cooling, subjecting the composite fibers to extrusion treatment to obtain final product.