nunderGrantsNo.93K-9andInternationalScienceandTechnologyCooperationProgramofChina.WebPhishingisanewthreattowebapplication,merceespeciallyinonlinefinancetransactions.Phishingdetectionisanimportanttooltoprotectsecurityinthisarea.Inthispaper,anovelarchitectureofPhishingwebdetection,andavisualbasedwebpagesimilaritydetectingalgorithmareproposed.heintegratefunctionmodulesandprocessingworkflow.posedoftwonovelalgorithms,web-imagesegmentationalgorithmandwebmatchingalgorithm.Theweb-imagesegmentationalgorithmbasedoniterateddividingandshrinking,andwebmatchingalgorithmbasedonNested-EMD.Accordingtoourexperiments,uracyandrobustness.Forfuturework,improvementscanbedoneinfeatureextractionandrelationconstruction.Somenewmatchingrulesalsocanbeimplemented,forexample,bygivingdifferentkey-zonestodifferentweights.