A zeolite functional paper and a calcium silicate functional paper were developed to adsorb and remove cations and anions in water respectively. The effectiveness of these functional papers to nitrogen and phosphorus which are factors of eutrophication of a lake, a river, etc. is verified. A series of adsorption tests to the water solution containing NH4-N and PO4-P was carried out, and the adsorption properties of these functional papers were examined. Main conclusions are as follows. Adsorption of NH4-N to the zeolite functional paper and PO4-P to the calcium silicate functional paper is caused in a short time. Mutual adsorption is not prevented if both NH4-N and PO4-P are mixed in a water solution. Once they adsorbed, it will not separate easily.