New type, high quality, high efficiency by iron kind of inorganic polymer flocculant, mainly used for water purification effect is good, good water quality, does not contain harmful material such as aluminum, chlorine and heavy metal ions, nor iron ion to transfer water, non-toxic, harmless, safe and reliable, in addition to the turbidity, decoloring, deoiling, dewatering, bacteria, deodorization, algae removal, removal of COD, BOD in water and heavy metal ions such as high efficiency, etc. Also used in industrial wastewater treatment, such as printing and dyeing wastewater, in casting, paper making, medicine, tanning and otheraspects are also widely used.