To provide a tag, a tag removal tool and a tag removal method, capable of attaching/detaching the tag without damaging a sheet-like material attached with the tag, and capable of reducing the risk of removing the tag at unintended time than before.

A tag detachably attached on an outer peripheral edge of the sheet-like material, comprises: a tag body part and a pair of attachment magnet parts integrally formed at one end of the tag body part and used to attach the tag body part on the sheet-like material by sandwiching the sheet-like material from the front and rear sides of the sheet-like material.