The working principle of the labeling machine is that the bottles that need to be labeled are transported through the bottle delivery track, and the bottles are separated by equal distances through the bottle distance adjustment mechanism. The photoelectric sensor senses the passing bottles and sends out a signal. The transmission system is activated by the signal and starts delivering labels. , the tensioning system realizes the tensioning of the label paper tape. After coding by the coding machine, the label paper positioning photoelectric sensor is positioned according to the length of the label paper, so that the length of the label paper pulled out of a piece of label paper is equal. Between the labeling component and Under the action of the label pressing component, the label paper is automatically peeled off and flatly attached to the required position on the bottle, completing the entire labeling process.