PROBLEM TO BE SOLVED: To provide a water-absorbent resin particle capable of exhibiting sufficient adhesiveness to a fibrous base material without impairing the water-absorbing performance which is the original property of the water-absorbent resin particle, and the water-absorbent resin particle and the fibrous base material. Provided are a solidified absorber and an absorbent article using the absorber. SOLUTION: A water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) which becomes a water-soluble vinyl monomer (a1) by hydrolysis and a cross-linked polymer (A) containing an internal cross-linking agent (b) as an essential constituent unit. And a hydrophobic substance (c), wherein the surface of the water-absorbent resin particles contains a polyether (d) having a polyoxyalkylene chain, and the number average molecular weight of (d) is Water-absorbent resin particles of 2000 or more. [Selection diagram] None【課題】吸水性樹脂粒子の本来の特性である吸水性能を損なうことなく、繊維状基材との十分な固着性を発揮できる吸水性樹脂粒子、及び前記吸水性樹脂粒子と繊維状基材を固着化した吸収体、前記吸収体を用いた吸収性物品を提供する。【解決手段】水溶性ビニルモノマー（ａ１）及び／又は加水分解により水溶性ビニルモノマー（ａ１）となるビニルモノマー（ａ２）、並びに内部架橋剤（ｂ）を必須構成単位とする架橋重合体（Ａ）と疎水性物質（ｃ）を含んでなる吸水性樹脂粒子であって、吸水性樹脂粒子の表面にポリオキシアルキレン鎖を有するポリエーテル（ｄ）を含有し、（ｄ）の数平均分子量が２０００以上である吸水性樹脂粒子。【選択図】なし
