▎ 摘　　要

NOVELTY - Preparing graphene oxide porous sheet involves dissolving graphene oxide and binder in water to obtain precursor solution and then freezing the precursor solution in a container to obtain intermediate product. The bottom of container is set with wedge-shaped device and then the obtained intermediate product is freeze-dried to remove solvent and to obtain graphene oxide porous sheet. USE - Method for preparing graphene oxide porous sheet (claimed). ADVANTAGE - The method enables to prepare graphene oxide porous sheet in simple manner, and with large area of biaxially oriented porous structure.