▎ 摘　　要

NOVELTY - Preparation of graphene-based conductive hydrogel involves (s1) uniformly mixing graphene and polyvinyl alcohol solution to obtain graphene-based polyvinyl alcohol mixed solution, (s2) adding chitosan alkenyl polyvinyl alcohol mixed solution in step (s1), mixing uniformly, leaving still and hydrating to obtain graphene-based polyvinyl alcohol-chitosan mixed solution, and (s3) freezing and thawing the graphene-based polyvinyl alcohol-chitosan mixture and immersing in a sodium citrate solution. USE - Preparation of graphene-based conductive hydrogel used in flexible wear-resistant strain sensors, human-computer interface, and electronic skin applications (all claimed). ADVANTAGE - The graphene-based conductive hydrogel has excellent mechanical properties, conductivity and flexibility. The method is simple to operate and easy to actual production and use.