In a municipal solid waste compost field, Kochia scoparia, an easy-to-grow weed plant, gradually invaded the experiment site and became the dominant species after four years' succession. Ethylenediaminetetraacetic acid (EDTA) solution at five rates 0, 25, 50 mmol L-1, 25 mmol L-1 +1 g L-1 ammonium sulfate (NH4)2SO4, 50 mmol L-1 +1 g L-1 (NH4)2SO4 was added to the tested plant root medium. The effects of EDTA and (NH4)2SO4 on Pb, Cr distribution in Kochia scoparia was investigated. Results suggested that plant biomass increased greatly with height, showing an "inversion pyramid" pattern in spatial structure. At the level of 50 mmol L-1 EDTA, single additions and combined additions with (NH4)2SO4 increased Pb, Cr concentrations in plant shoots at different heights. Lead, Cr uptakes increased towards the top of the shoot. Combined application of 50 mmol L-1 EDTA and (NH4)2SO4 increased Pb uptakes by 21.6%, 19.2%, 111.3%, 124.3% and 154.0% in 0-30 cm, 30-60 cm, 60-90 cm, 90-120 cm and over 120 cm spatial shoots, respectively, as compared to those of controls. The increment for Cr uptake was 244.5%, 281.7%, 100.0%, 77.2% and 187.4%. The relationship between Pb, Cr concentrations in plant shoots and spatial height was found to be positively linear and statistically significant at 1% level at 50 mmol L-1 EDTA alone and 25 mmol L-1 EDTA together with (NH4)2SO4. Results presented here indicated that Kochia scoparia had potential in removal of Pb, Cr from MSW compost with combined application of EDTA and (NH4)2SO4.