The experiment was done from March to May,2009.Different emergent aquatic plants,ten kinds of vegetables Allium sativum,Allium fistulosum,Ipomoea aquatica,Solanum lycopersicum,Solanum melongena L,Capsicum annuum Linn,Romaine lettuce,Cornarium var.spatisum,Phaseolus vulgaris L and Brassica rapa pekinensis,eight types of flowers Calendula officinalis,Capsicum frutescens,Leaf beet,Petunia hybrida,Marigold,Crabapple,Heronsbill and Tagetes patula and eight species of local wild plants Herba plantaginis,Gnaphalium affine,Herba erigerontis annui,Herba duchesneae indicae,Artemisia princeps,Solanum melongena L,Herba setariae viridis and Typha orientalis Presl were cultivated in Yichang City,Hubei,China on artificial floating island which was set up using foams to purify the eutrophication water,and monitor Total Nitrogen (TN),Total Phosphor (TP),and Copper (Cu) of the water in the single species experiment in single water tank indoor.Through the experiment,all the plants chosen can purify the water well,the TN,TP,Cu removal rates reached up to 81.6％,88.5％,and 82.1％ on average,respectively.Heavy metals in the edible parts of vegetables were detected,and the contentwas law in the safety limitation.By compared the unitage biomass removal rate,pekinensis,romaine lettuce and Ipomoea aquatica can be used as native vegetables with economic as the ecological treatment plants.The characteristics of the flowers such as scent,color,and so on have to be studied.Other practical value of the wild plants need further research.