A tack labeler (1, 1A), comprising: base material pair delivering means (20, 40) for reeling out and delivering a label formation base material pair from a base material pair roll formed by winding the label formation base material pair in a rolled shape, the label formation base material pair being formed by detachably pasting, to each other on the adhering surface side, label formation base materials in which tack labels are continuously joined to each other, separating-delivering means (50, 50A) for separating a delivered label formation base material pair into the label formation base materials and respectively delivering the label formation base materials; cutting means for successively cutting the respective separated label formation base materials so as to form individual tack labels; adhering means (70, 70A) for adhering the formed individual tack labels to articles to be adhered; and control means for controlling actions of the base material pair delivery means (20, 40) the separating-delivering means (50, 50A), the cutting means and the adhering means (70, 70A), characterized in that: the separating-delivering means (50, 50A) has a pair of suction drive rollers (51, 51, 91A, 91 B) respectively arranged on the both sides of the label formation base material pair so as to nip the label formation base material pair, the suction drive rollers (51, 51) being adapted to deliver the label formation base materials in the directions in which the label formation base materials are brought away from each other while suctioning and holding the respective separated label formation base materials onto outer circumferential surfaces. base material pair delivering means (20, 40) for reeling out and delivering a label formation base material pair from a base material pair roll formed by winding the label formation base material pair in a rolled shape, the label formation base material pair being formed by detachably pasting, to each other on the adhering surface side, label formation base materials in which tack labels are continuously joined to each other, separating-delivering means (50, 50A) for separating a delivered label formation base material pair into the label formation base materials and respectively delivering the label formation base materials; cutting means for successively cutting the respective separated label formation base materials so as to form individual tack labels; adhering means (70, 70A) for adhering the formed individual tack labels to articles to be adhered; and control means for controlling actions of the base material pair delivery means (20, 40) the separating-delivering means (50, 50A), the cutting means and the adhering means (70, 70A), characterized in that: the separating-delivering means (50, 50A) has a pair of suction drive rollers (51, 51, 91A, 91 B) respectively arranged on the both sides of the label formation base material pair so as to nip the label formation base material pair, the suction drive rollers (51, 51) being adapted to deliver the label formation base materials in the directions in which the label formation base materials are brought away from each other while suctioning and holding the respective separated label formation base materials onto outer circumferential surfaces. the separating-delivering means (50, 50A) has a pair of suction drive rollers (51, 51, 91A, 91 B) respectively arranged on the both sides of the label formation base material pair so as to nip the label formation base material pair, the suction drive rollers (51, 51) being adapted to deliver the label formation base materials in the directions in which the label formation base materials are brought away from each other while suctioning and holding the respective separated label formation base materials onto outer circumferential surfaces.