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The key of Phytoremediation depends on screening,identification and domestication of tolerance species and hyperaccumulator.Choosed 4 lead-zinc mine areas as study areas in northwestern Guizhou Province,selected tolerance dominant species of heavy metals by investigating community ecological with method of clustering analysis.At the same time,analyzed the capability of migration and enrichment of heavy metals,which were Pb,Zn,Cu and Cd,in the tolerance dominant species.The results showed that there were 22 species of higher plants,which belonged to 13 families 21 chasses,in the 4 lead-zinc mine areas.And selected 9 tolerance dominant species of heavy metals,they were Buddleja davidii,Artemisia lavandulaefolia,Artemisia annua,Stellaria media,Sonchus oleraceus,Saccharum spontaneum,Pteridium revolutum,Anaphalis margaritacea and Equisetum ramosissimum.The transfer coefficients of the tolerance dominant species which were more than one were Artemisia annua(Cu),Anaphalis margaritacea(Zn),Buddleja davidii(Zn/Pb/Cd) and Artemisia lavandulaefolia(Cu/Zn/Pb/Cd).There was no specie which enrichment coefficients was more than one were none.There were some special advantages in the Buddleja davidii,such as arid-resistant,great biomass and so on.Thus,taken Buddleja davidii as a pioneer of tolerance species for Phytoremediation in the lead-zinc mine areas.