▎ 摘　　要

NOVELTY - The preparation method of graphene porous membrane involves dissolving graphene oxide and solid sodium chloride in deionized water, transferring the solid mass to a cell, grinding, forming a mixture, adding PTFE, mixing, injecting into mold, drying at room temperature for 2-4 hours, drying in oven at 30-70 degrees C and finally annealing in oven at 130-190 degrees C. USE - Preparation of graphene porous membrane for sodium chloride assisted system. ADVANTAGE - The method enables preparation of graphene porous membrane by simple process and at low production cost.