A pure inorganic porous framework based on the tungstoferrate[FeW_（12）O_（40）]^（5-）,Fe（H_2O）_6H[Na_6FeW_（12）O_（40）]_2·44H_2O（1） was obtained by the conventional aqueous solution method and characterized by elemental analysis,TG,FT-IR,UV-vis spectroscopy. Single-crystal X-ray diffraction analyses reveal that compound 1 crystallizes in the space group Fm-3m,which is composed of a porous inorganic framework[Na_6FeW_（12）O_（40）]_n with two kinds of pores A and B,accommodating Fe（H_2O）_6 units in pore A,which was observed rarely in the pure inorganic framework.
