Cesium isotopes are very important fission products,which are also interested in fission product analysis and spent fuel reprocessing.Ion exchanger used for rapid separation of cesium with half-life of minutes is studied in this work.Large particle zirconium phosphate-ammonium molybdophosphate(ZrP-AMP)used for ion exchange column analysis was prepared by sol-gel method with AMP wrapped in ZrP.More than Cesium isotopes are very important fission products, which are also interested in fission product analysis and spent fuel reprocessing. Ion exchange used for rapid separation of cesium with half-life of minutes is studied in this work. Larger particle zirconium phosphate-ammonium molybdophosphate (ZrP -AMP) used for ion exchange column analysis was prepared by sol-gel method with AMP wrapped in ZrP. More than