▎ 摘　　要

NOVELTY - The sensor has a working electrode located on a same plane of a polyimide film substrate, and a reference electrode and a planar three-electrode composed of a counter electrode. The working electrode is composed of a graphene layer and a copper oxide layer coated on a portion of a surface. The reference electrode is composed of a graphene layer and a silver/silver chloride conductive layer coated on a portion of the surface of the graphene layer. The counter electrode is provided with a graphene layer. The working electrode, the reference electrode and the counter electrode are arranged at a predetermined interval from each other. The silver/silver chloride conductive layer is arranged in the reference electrode and the counter electrode. USE - Laser direct writing based flexible electrochemical glucose sensor. ADVANTAGE - The flexible electrochemical glucose sensor has wide linear detection range, simple processing and preparation, low production cost, easy mass production, bending for many times and good stability, and can be integrated with the flexible temperature, pressure, strain sensor, the human health detection, biological medical field with wide application prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a laser direct writing based flexible electrochemical glucose sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the laser direct writing based flexible electrochemical glucose sensor.