Provided is a water absorption treatment material and a method for manufacturing the same, according to which a clump can be formed after use without incurring a decrease in water absorptivity. A water absorption treatment material (1) includes a granular core portion (10) and an embedded portion (20). A recessed portion (12) is formed on the surface of the granular core portion (10). The embedded portion (20) is provided in the recessed portion (12) of the granular core portion (10). The embedded portion (20) contains an adhesive material.
