Abstract: In order to screen plants growing on a contaminated site to determine their potential for heavy metal accumulation, the concentrations of As, Hg, Se, Cr, Ni, Cu, Zn, Cd and Pb in the rhizophere soils, roots and shoots of 11 native plants growing in Danzhai mercury(gold)-mining area were determined by inductively coupled plasma mass spectrometry and atomic fluorescence spectrophotometer. Furthermore, the heavy metal contamination of soil was evaluated by single pollution index(PI), bioaccumulation and translocation of the heavy metal in plants were evaluated by the means of bioaccumulation factor (BCF) and biological translocation factor (BTF). The results of PI showed that the soils were severely polluted by As, Hg and Se, and were slightly polluted by Zn and Pb, but were not contaminated by other heavy metal. Based on BCF and BTF values, 11 native plants were classified into 3 types: Pteris vittata was hyperaccumulating plant of As, moreover, Solanum nigrum was accumulating plant of Cd, Aster subulatus was accumulating plant of Cu and Zn; A. subulatus was root compartment plant of Se， Pogonatherum crinitum was root compartment plant of As and Cr; Xanthium sibiricum, Nicandra physalodes, Bidens pilosa, Miscanthus sinensis, Phytolacca acinosa, Chenopodium album and Boehmeria nivea were excluder plants.

Key words: Danzhai, mercury(gold)-mining area, native plants, heavy metal, bioconcentration factor, biotranslocation factor