The concentrations of radionuclides in soil from uranium mill tailings in South China were analyzed. The results showed that all radionuclides in soil samples exceeded the soil background value. Through the field investigation, four kinds of dominant plants were identified. It was found that the total quantity of radionuclides in the whole plant from high to low were pokeberry, Cibotium barometz, reed and garden sorrel. We also found that Cibotium barometz had the highest transfer factor (TF) for 238 U, garden sorrel had the highest TF for 232 Th and reed had the highest TF for 226 Ra and 40 K. Cibotium barometz had the highest bioconcentration factor (BF) for 238 U, 232 Th and 226 Ra, and pokeberry had the highest BF for 40 K. Pokeberry had the highest phytoremediation factor (PF) for 238 U, 232 Th, 226 Ra and 40 K. On the basis of the above conclusions, pokeberry could be a candidate for phytoremediation of radionuclide-contaminated soils.