▎ 摘　　要

NOVELTY - The method involves preparing a graphene oxide film (9) on the upper portion of a substrate (8). A micro-cavity is processed on the upper surface of the graphene oxide film. The graphene oxide process is performed under ammonia (NH3) condition. The graphene oxide of a nitrogen-doped microstructure is reduced during laser direct writing process. USE - Laser processing method of nitrogen-doped micro-structure of micro-nano processing system. ADVANTAGE - The precision of laser processing can be improved. The laser processing power can be improved. The doping concentration can be adjusted efficiently. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the laser processing system. Laser (1) Lens (2) Reflecting mirror group (3) Substrate (8) Graphene oxide film (9)