Attachment of blender for splitting nuts, applicable to be used with a base (2) of beater (3) domestic removable, which includes the motor whose shaft is dockable to different interchangeable elements, is characterized by comprising a vessel (4)) with an insertion mouth (5) to put the fruits out, some rollers (6) that are housed inside the said vessel (4) and a coupling element (7) for the base (2) of the blender which is associated with said rollers (6) by rotating them when the base (2) is actuated once incorporated, which causes peeling and/or descaling of the nuts inserted in the vessel (4) when they are caught between the rollers (6).1. Accesorio de batidora para partir frutos secos que, aplicable para ser utilizado con una base (2) de batidora (3) domestica desmontable, que incluye el motor cuyo eje es acoplable a diferentes elementos intercambiables, está caracterizado por comprender una vasija (4) con una boca de inserción (5) para meter los frutos a partir, unos rodillos (6) que quedan alojados en el interior de dicha vasija (4) y un elemento de acople (7) para la base (2) de la batidora que está asociado a dichos rodillos (6) haciéndolos girar al accionar la base (2) una vez incorporada, lo cual ocasiona el pelado y/o descascarillado de los frutos secos insertados en la vasija (4) al quedar atrapados entre los rodillos (6).