▎ 摘　　要

NOVELTY - A graphene nano-sheet manufacturing method involves pre-processing graphite in a graphite nano-sheet, and oxidizing the graphite nano-sheet to obtain oxidized graphite nano-sheet. Oxygen functional group in an oxidized graphite nano-sheet surface is removed to obtain the graphene nano-sheet. USE - Method for manufacturing of a graphene nano-sheet. ADVANTAGE - The method enables manufacturing the graphene nano-sheet with large surface area in an inexpensive and environment-friendly manner. DESCRIPTION OF DRAWING(S) - The drawing shows a graph illustrating an X-ray diffraction spectrum result of an oxidized graphite nano-sheet.'(Drawing includes non-English language text)'