▎ 摘　　要

NOVELTY - Preparing polymer/graphene oxide composite material comprises (i) reacting graphene oxide solution with polymer monomer I in the presence of template I, separating to obtain product I, and(ii) reacting the dispersion of product I with polymer monomer II in the presence of template II, removing the template I and the template II, and separating to obtain polymer/graphene oxide composite material. USE - The material is useful for supercapacitors, batteries, electrocatalysis and other fields (claimed). ADVANTAGE - The method: has good universality and excellent controllability; realizes the effective integration of different pores and different levels of active substances on a single nanosheet; produces product having large specific surface area and high porosity; has adjustable aperture and thickness, and excellent electrochemical performance.