▎ 摘　　要

NOVELTY - The preparation method of graphene nanosheets involves mixing polymer and activator in a certain proportion, placing in an inert atmosphere, heating at a certain temperature, activating, cooling to room temperature, washing to neutral and drying. USE - Preparation of graphene nanosheets used for super capacitor, metal air battery, biopharmaceutical drug carrier, catalyst carrier and transparent electrode. ADVANTAGE - The method enables the preparation of graphene nanosheets by simple process and easy operation.