To provide an electrode roll capable of preventing lowering of production efficiency due to active material particles that have fallen. An electrode roll (600) in which a sheet-like electrode base material (500) which is subjected to cutting to be an electrode used for an electrochemical element is rolled, including a resin cylindrical member (200) having a peripheral surface (220) with a predetermined width, a flexible film (400) to be attached/detached with respect to the peripheral surface, and the sheet-like electrode base material (500) wound on the flexible film (400).