Abstract: The adsorption capability of 134Cs by montmorillonite, vermiculite and zinc ferrocyanide and the effect of different conditions on the adsorption were studied in the choice of the sorbent used for the treatment of radioactive wastewater containing cesium by inorganic ion exchange-microfiltration membrane process. According to the result and run parameters of the coagulation and micro filtration combined technological process (CMF), zinc ferrocyanide was screened out to be the sorbent used for the treatment of radioactive wastewater containing cesium by membrane process and the dosage is 0.33 g/L.