Abstract: A method for determination of ⁵⁵Fe in leaching solution of cement solidification using PAX-2 anion exchange resin was developed. In this work, ⁵⁵Fe was first precipitated in the form of hydroxide and subsequently purified by PAX-2 anion exchange resin. After the purification, ⁵⁵Fe was determined by liquid scintillation counter(LSC). The optimal purification condition of PAX-2 anion resin was discussed, and 10.0 mol/L, 6.0 mol/L HCl were chosen. In addition, the decontamination factors for ⁵⁵Fe with Ni, Mn and Cr are higher than 10 000, while the decontamination factors of Co and Zn are 769 and 629, respectively. The performance of the method was examined using a series of the leaching solution samples spiked with various specific activities of ⁵⁵Fe ranging from 16.39 Bq/g, along with the procedural blanks. The mean chemical recovery of ⁵⁵Fe is 76%±2%. The minimum detectable specific activity is determined to be 0.018 Bq/g for ⁵⁵Fe in leaching solution samples with a counting time of 1 h.