[en] A method for preparation of sodium zirconosilico-phosphates of composition Na₃Zr₂Si₂PO₁₂ includes thermal treatment of the mixture prepeired by preliminary mixing of zirconium-nitrate solution with silicic acid, by introduction ofammonia to the suspension formed, by precipitation of a sediment and its mixing with sodium carbonate and sodium or ammonium dihydrophosphate. The method permits to increase the degree of purity of a desired product. According to the X-ray phase analysis the content of free zirconium dioxide does not exceed analysis sensitivity (0.5%)