▎ 摘　　要

NOVELTY - An electrocardiography electrode comprises a flexible substrate layer and a graphene nano wall layer, where the graphene nano wall layer edge is coated with electric conduction silver paste, and the electric conduction silver plastic metal wires with plastic. USE - Electrocardiography electrode. ADVANTAGE - The electrode has high accuracy, good flexibility and conductivity, better corrosion resistance, anti-interference and anti-noise effect, prolonged use life and can be prepared in a simple and easy manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing electrocardiography electrode, which involves depositing plasma enhanced chemical vapor deposition layer on the surface of the metal sheet, coating a graphene wall with conductive silver paste, connecting conductive silver metal wires connected to the plastic to obtain flexible substrate, followed by removing metal sheet to obtain graphene nano-wall flexible electrocardiography electrode.