Abstract:The Plant-Microbial Remediation is a potential method for the disposal of heavy metal polluted soils, and the selection of appropriate microorganisms to improve the plant absorbability of heavy metal is important for the maintenance method. With the soil of Zhuzhou Qingshuitang industrial zone as the study object (sampling depth is 0 to 20 cm), the strains which can secrete siderophore and resist cadmium in the samples were screened by the dilution culture method and the CAS method. Minimum inhibitory concentration of cadmium ion in the objective strain was determined and its morphology was observed through the microscope and scanning electron microscope (SEM). The result showed that the strains of X19(bacteria), X22(bacteria)and Z1(fungi)can secrete siderophore and has strong resistance to cadmium, MICs of strains X19, X22 and Z1 to cadmium are 450mg/L,220 mg/L and 800mg/L respectively, and the ability of secreting siderophore was Z1 > X19> X22, judged by CAS color variation.