A water-absorbent sheet structure comprises a structure in which an absorbent layer comprising a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent resin is contained in an amount of 10 g / m 2 or more and less than 100 g/m 2 , and wherein the water-absorbent resin has a water-retention capacity of saline solution of from 35 to 80 g/g, and wherein the water-absorbent sheet structure has a peeling strength of from 0.05 to 3.0 N/7 cm. The water-absorbent sheet structure according to the present invention exhibits some effects that a water-absorbent sheet structure has excellent shape retaining ability even when the structure is thin, so that the water-absorbent sheet structure does not undergo deformation of the form before liquid absorption or after the absorption, and is capable of sufficiently exhibiting absorbent properties not only to a low-viscosity liquid such as urine but also a high-viscosity liquid such as menses.本發明係一種吸水片材結構體，其係具有包含吸水性樹脂及接著劑而成之吸收層由不織布自該吸收層之上方及下方夾持之構造者，且該吸水性樹脂之含量為10 g/m2以上且小於100 g/m2，該吸水性樹脂之生理鹽水保水能力為35~80 g/g，該吸水片材結構體之剝離強度為0.05~3.0 N/7 cm。本發明之吸水片材結構體即便為薄型，因形態保持性良好，亦可發揮如下之優良效果：於液體吸收前及吸收後不會發生形變，並且不僅對於如尿之低黏性液體，對於如經血之高黏性液體亦可發揮充分之吸收能力。
