A tack labeler includes a reeling-out unit for reeling out a label formation base material pair from a base material pair roll set on a roll holder; a base material pair accumulation unit for accumulating the label formation base material pair; a separating-delivering unit for pulling out the label formation base material pair from the base material pair accumulation unit, separating the label formation base material pair into respective label formation base materials, and delivering the respective label formation base materials; cutting units for successively cutting connection portions of cut lines formed on each of the label formation base materials; adhering units for adhering the tack labels cut off from each of the label formation base materials onto containers conveyed to adherence positions; and base material collecting units for winding up and collecting each of the label formation base materials.