From the aspects of hydrophilic modification of membrane matrix and membrane surface, summarized the current hydrophilic modification methods of hydrophobic PVDF membrane and introduced the mechanism, advantages and disadvantages and progress in recent years of blending modification, copolymerization modification, surface chemical modification, radiation grafting modification and other methods. Presented that blend inorganic nanoparticles can improve the hydrophilicity and strength of the membrane and have good prospects for development.