An SAP evaluation device is disclosed. The SAP evaluation device includes a main body provided with an elevating bar that moves up or down, and a main body provided below the elevating bar, and a housing space in which an absorber is housed is formed inside. An actuating unit connected to the container unit and the elevating bar, a lowering plate that ascends or descends inside the storage space and presses the absorber is provided at a lower portion, and an injection unit that injects ink in the direction of the absorber is formed. And a diffusion measurement unit that measures a state in which the ink is diffused into the absorber, and a diffusion measurement unit that is provided in the main body, measures a state in which the ink is absorbed by the absorber, and measures the state in which the ink is injected into the absorber. A control unit for measuring the swelling strength.ＳＡＰ評価装置が開示され、ＳＡＰ評価装置は、上昇または下降する昇降バーが設けられた本体と、本体で昇降バーの下部に設けられ、内部には吸収体が収容される収容空間が形成された容器部と、昇降バーに連結され、下部には収容空間の内部で上昇または下降して吸収体を加圧する昇降プレートが設けられ、吸収体方向にインクを注入する注入部が形成された作動部と、インクが吸収体に拡散される状態を測定する拡散測定部と、本体に設けられ、インクが吸収体に吸収される状態を測定し、インクが吸収体に注入された状態で吸収体の膨潤強度を測定する制御部とを備える。
