A labeling machine wherein a continuous label sheet (R) having a mount (S) on which a plurality of printed labels (L) are stuck temporarily is fed from a label holder (31) and, after deflected by a deflecting pin (32), the mount (S) is wound up while being pulled by a motor (21), and then a label (L) is peeled off from the mount to have its unpasted surface side face the sticking part of a rotating body. The motor (21) is driven by a mount looseness detector circuit (50) when the mount is loosened and also driven by a label existence detector circuit (60) until, after a label has been stuck, the next label is peeled off to face the sticking part.