To provide a porous molding which can remove ions in treated water, in particular, phosphorus ions even at a liquid passage speed of ultrahigh speed of SV120hr, and has high adsorbent capacity.SOLUTION: A porous molding contains an organic polymer resin and an inorganic ion adsorbent, in which the total sum of a pore volume having a pore diameter of 1 nm-80 nm measured by a nitrogen gas adsorption method is 0.05-0.7 cm/g per unit weight of the inorganic ion adsorbent.SELECTED DRAWING: None【課題】被処理水中のイオン、中でも、リンイオンをSV120hr-1の超高速の通液速度でも除去することができ、かつ、吸着容量が大きい多孔性成形体の提供。【解決手段】有機高分子樹脂及び無機イオン吸着体を含む多孔性成形体であって、窒素ガス吸着法で測定した細孔直径1nm~80nmの細孔体積の総和が、該無機イオン吸着体の単位質量当たり0.05cm3/g~0.7cm3/gであることを特徴とする多孔性成形体。【選択図】なし