A　novel　method　to　fabricate　loose　NF　membrane　for　textile　wastewater　treatment　was　reported.　PEI　was　reacted　with　gallic　acid　by　condensation　reaction　and　then　the　modified　PEI　was　deposited　on　hydrolyzed　polyacrylonitrile　(PAN)　substrate　through　electrostatic　interaction　followed　by　thermal　treatment.　With　increases　in　the　concentration　of　gallic　acid　and　PEI　in　the　coating　solution,　the　selective　layer　became　dense　and　rejection　for　dyes　increased.　The　membrane　prepared　at　optimized　condition　achieved　a　high　flux　for　dyes　(51　L/(m(2).h)　at　0.2　MPa)　and　the　rejection　of　Methyl　Blue　and　Gongo　red　are　97.3%　and　97.1%　when　gallic　acid　and　PEI　concentration　are　fixed　at　0.1　wt%　and　1　wt%,　respectively　in　coating　solution　at　crosslinking　temperature　of　45　degrees　C.　Meanwhile,　this　membrane　also　exhibited　the　good　hydrophilicity　(contact　angle　50.2　degrees),　the　flux　recovery　ratio　(91.7%)　and　the　lowest　irreversible　fouling　ratio　(8.1%)　for　humic　acid　(HA),　and　the　best　satisfactory　antifouling　stability　in　the　long-term　operation　for　dyes　and　salts　mixture　solution.　The　novel　fabricated　membranes　exhibited　an　impressive　prospect　for　the　dye　reuse　due　to　the　high　rejection　of　dyes　with　a　high　flux,　as　well　as　low　salt　rejection.