A labeling device, comprising a scale control assembly (11) and a stripping assembly (12), the scale control assembly (11) being configured to obtain a material strip (10) and to lead out a predetermined length of the material strip (10); the stripping assembly (12) being configured to grasp a target label (101) on the material strip (10) led out by the scale control assembly (11) and to affix the target label (101) to a product (D) to be labeled at a pre-set position so as to obtain a labeled product. Said device controls, by means of the scale control assembly, the length of the material strip that is led out at each time when labeling the product to be labeled, so as to improve the precision of the stripping assembly grasping the label and affixing the label to the product to be labeled.