▎ 摘　　要

NOVELTY - A graphene oxide material with high strength and high toughness comprises graphene oxide micro-fiber. The graphene oxide micro-fiber is combined by Vander Waals force between graphene oxide sheets. USE - Graphene oxide material with high strength and high toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of thegraphene oxide material comprising extruding graphene oxide spinning solution into differentiation flow passage comprising spinning tube and shunt grid vertically set on front section of spinning tube; cutting graphene oxide spinning solution into microfibrillated structure through shunt grid, and keeping microfibrillated structure at back section of spinning tube; and extruding graphene oxide liquid crystal of microfibrillated structure into coagulation bath.