▎ 摘　　要

NOVELTY - Preparing graphene by low-temperature chemical method, comprises using graphene oxide prepared via chemical oxidization as raw material; a reduction reaction step of reducing the graphene oxide into graphene; the reduction reaction step uses sodium borohydride as reducing agent; through the assistance of the catalyst, the graphene oxide is reduced into graphene at the temperature of 80-150 degrees C. USE - The method is useful for preparing graphene (claimed). ADVANTAGE - The method is low in reduction temperature, temperate and controllable in reaction, more complete in reduction, environmental-friendly, and suitable for industrial production.