According to one embodiment, a gripping tool includes a gripper. The gripper is flexible. A granular material is provided in an interior of the gripper. The gripping tool grips a workpiece by depressurizing the interior of the gripper in a state in which the gripper is caused to contact the workpiece. The gripper includes a first portion contacting the workpiece, a second portion opposing the first portion, and a fibrous membrane having a plurality of pores and being provided between the first portion and the second portion. A diameter of at least a portion of the pores is smaller than a diameter of the granular material. The granular material is provided between the fibrous membrane and the second portion.