Abstract: The two plant species, Vetiveria zizanioides and Althernanthera philoxeroides, presented different uptake capacities to different “pollutants” of garbage leachates. The amounts of N absorbed by plants were even more than the amounts purified by them. The plants also absorbed P very vigorously, and amounts absorbed accounted for 90% or so of those purified. However, the uptake ratios of Cl in 2 kinds of leachate assumed an enormous disparity: 2-3 times higher in low concentrated leachate than in highly concentrate leachate. Moreover, ratios of the amount of uptake to the amount of original leachate further lowered. This indicated that besides uptake of roots, other forms of pollutant removal occurred, suggesting the plant purification of waste water was in fact a comprehensive influence of the rhizospheric micro-ecosystem on pollutants. Overall, V. zizanioides did not show any stronger uptake ability than A. philoxeroides, in spite of the fact that the former had stronger purifying ability than the latter.