Tin- and niobium phosphates were prepared from phosphoric acid with the corresponding metal chloride in the presence of suitable surfactants. The pore structures of these phosphates were hexagonal. These metal phosphates possess excellent anion exchange capacities. Especially in the case of niobium phosphate, 6.3mmol-eq/g of capacity was observed, which is higher than common anion exchangeable resins. This is due to the charge balance of cations both on phosphorus and niobium. This unique property of these phosphates is expected to create some novel application of nano-technology.