The　modification　of　hollow　fiber　ultrafiltration　membranes　with　carbon　nanotube　(CNTs)　on　fouling　control　was　investigated.　Considering　the　antifouling　ability　of　the　CNT-modified　membranes　and　the　stability　of　CNTs　layer,　several　factors　were　analyzed　and　evaluated,　including　the　concentration　of　ethanol-dispersion,　the　diameter　of　CNTs,　and　the　loading　mass　of　CNTs.　Besides,　DOC,　UV254,　and　fluorescence　characteristics　of　the　permeate　from　the　CNT-modified　membrane　were　analyzed.　The　results　revealed　that　the　optimal　modification　method　included　a　50%(volume　fraction)　ethanol-dispersion,a　30-50　nm　diameter-CNTs,　and　3　g·m-2　CNTs＇　loading.　Compared　with　the　virgin　membrane,　the　removal　rates　of　DOC　and　UV254　by　the　CNT-modified　membrane　were　increased　by　37%　and　56%,　respectively.　Meanwhile,　it　was　proved　that　the　humic-like　and　protein-like　materials　were　more　easily　removed　by　the　CNT-modified　membrane.　©　2017,　Science　Press.　All　right　reserved.