▎ 摘　　要

NOVELTY - Preparing electro active graphene oxide hydrogel comprises chemically cross-linking graphene oxide and water-soluble conductive polymer material in water to obtain final product. USE - The hydrogel is useful: in biomedical fields including bio-imaging, drug delivery and photothermal therapy; and for chemical tanning and heat synergy therapy fields. ADVANTAGE - The hydrogel has excellent electrical activity, photothermal conversion performance and water solubility, synergistic photothermal effect, and enables the loading of hydrophobic and hydrophilic drugs.