Abstract: The invention relates to a staple remover having a pressure-gripping structure which is made to execute a complete staple removing effect by a post-processing staple removing operation in case when such staple remover can not complete the staple removing function as it should. The invention includes at least one groove formed on one of the inner side or outer side staple removing arms for pressure-gripping by biting the staple at the crossing points when the inner side staple removing arm and the outer side staple removing arm are crossed each other. The invention has such effect that not only a utilizing efficiency of the staple remover is increased but also a great convenience is obtained.