The present invention (i) polymerized ethylenically unsaturated monomers containing (a) acid groups or salts thereof, or polymerized ethylenically unsaturated monomers comprising protonated or quaternized nitrogen, or mixtures thereof, particularly preferably acid groups, Preferably 0.1 to 99.99% by weight, preferably 20 to 98.99% by weight, more preferably 30 to 98.95% by weight, of a mixture comprising at least an ethylenically unsaturated monomer, preferably partially acrylic acid, %, 0 to 70% by weight, preferably 1 to 60% by weight, more preferably 1 to 40% by weight, of a polymerized ethylenically unsaturated monomer capable of copolymerizing with (? 2) (? 1) (? 3) 0.001 to 10% by weight, preferably 0.01 to 7% by weight, more preferably 0.05 to 5% by weight, of at least one crosslinking agent, (a4) 0 to 30% by weight, preferably 1 to 20% by weight, more preferably 5 to 10% by weight, of the water-soluble polymer, and (? 5) 0 to 20% by weight, preferably 0.01 to 7% by weight, more preferably 0.05 to 5% by weight, , Wherein the total weight of (? 1) to (? 5) is 100% by weight； (ii) free radical polymerization by crosslinking to form a water-insoluble aqueous untreated hydrogel polymer； (iii) coarse grinding the untreated hydrogel polymer to form a piece having a diameter ranging from 0.1 mm to 5.0 cm； (iv) cooling the pre-milled untreated hydrogel polymer and pulverizing the cooled untreated hydrogel polymer； (v) drying the pulverized untreated hydrogel polymer after the pulverization at a temperature in the range of 85 캜 to 260 캜 and sieving the dried pieces in the range of 150 탆 to 850 탆； (vi) post-cross-linking the hydrogel polymer； And (vii) drying and finishing the water-absorbing polymer To a process for preparing a water-absorbing polymer, and the use thereof.본 발명은(i) (α1) 산 기를 함유하는 중합된 에틸렌계 불포화된 단량체 또는 이의 염, 또는 양성자화 또는 4차화 질소를 포함하는 중합된 에틸렌계 불포화된 단량체, 또는 이의 혼합물, 특히 바람직하게는 산 기, 바람직하게는 아크릴산을 함유하는, 경우에 따라 부분적으로 중화된 형태의 적어도 에틸렌계 불포화된 단량체를 포함하는 혼합물 0.1∼99.99
