The present invention relates to a hydrous gel sheet including at least two laminated layers of a body-side surface layer and an environment-side surface layer, each of which is made of a hydrogel obtained from the reaction of polyacrylic acid or a salt thereof and multivalent metal ions, wherein the polyacrylic acid or the salt thereof used for forming a gel matrix of the environment-side surface layer is greater in weight-average molecular weight than the polyacrylic acid or the salt thereof used for forming a gel matrix of the body-side surface layer. Since a support body such as a nonwoven fabric is not used for the environment-side surface, but rather a support body made of hydrous gel is formed on the environment-side surface, the adhesive hydrous gel sheet according to the present invention, which is used for adhering to the human body, has excellent wear and handling properties as well as excellent stretching and deformation-absorbing properties, and also exhibits an improved appearance, aging stability, and durability.
