The absorption and accumulation of ¹³³Cs and ⁸⁸Sr in four plant species,such as Sudan grass (Sorghum sudanense),sunflower (Helianthus annuus),radish (Raphanus sativus L.) and leaf mustard (Brassica juncea) in different ¹³³Cs and ⁸⁸Sr concentration contaminated soils （0,2.5,5.0,10.0,20.0,40.0 mg/kg）was studied and their phytoremediation efficiency was compared.The result showed that:(1)The biomass order of the individual plant in different ¹³³Cs and ⁸⁸Sr concentration contaminated soil ranked as:sunflower>radish>leaf mustard>Sudan grass,the order of ¹³³Cs absorption capacity of the root from the soils:radish>Sudan grass>sunflower>leaf mustard,the total concentration of ¹³³Cs and ⁸⁸Sr individual plant ranked:sunflower>radish>Sudan grass>leaf mustard and radish,sunflower>Sudan grass>leaf mustard,respectively.Four plant species revealed stronger ⁸⁸Sr absorption capacities than that of ¹³³Cs.(2)The bioaccumulation factor (BCF) of radish was greater than 1 in different treatments except in the 10.0 mg/kg ¹³³Cs treatment and it performed stronger ¹³³Cs bioaccumulation ability.The translocation factors (TF) of four plant species in different treatments were less than 1 except in the 5.0 mg/kg ¹³³Cs treatment.The translocation ability of ⁸⁸Sr from the roots up to the upper ground part of the radish was relatively higher than that of other three species.Leaf mustard and sunflower ranked the second.(3)The translocation ability of ⁸⁸Sr from the roots up to the upper ground part of the plants was stronger than that of ¹³³Cs in four plant species.The result revealed that the plant species of the highest phytoremediation efficiency was sunflower and the second radish.They had stronger phytoextraction ability from ¹³³Cs and ⁸⁸Sr contaminated soil because of their advantages in the highest individual plant biomass of sunflower and the more ¹³³Cs and ⁸⁸Sr uptake capacity of radish,respectively.