Water purification material capable of adsorbing micro-ecological chelated nano-iron and preparation method of water purification material

The invention provides a preparation method of a water purification material for adsorbing micro-ecological chelated nano-iron, which comprises the following steps: fermenting and after-ripening probiotic raw material liquid to obtain fermentation liquid; and putting an activated carbon material into the fermentation liquor to obtain the activated carbon fermentation liquor, the probiotic raw material liquid comprises cane sugar, sodium glutamate, salt, green tea water, wheat bran water, composite strains, nano iron powder, water, a fermenting agent and amino acid; the composite strain comprises one or more of lactic acid bacteria, saccharomycetes, bacillus and photosynthesis bacteria. Composite strains containing lactic acid bacteria, bacilli and saccharomycetes are used for carrying out facultative and anaerobic fermentation to generate the micro-ecological liquid containing various organic acids. During fermentation, nanoscale iron powder is added, ferrous ions are generated under the anaerobic condition,