The high-speed horizontal labeling machine is suitable for labeling all kinds of round bottles that cannot stand. Material feeding and collection mechanism can be designed as customer needs. The body can be designed to tilt forward or backward, and the conveyor belt can be customized to suitable for small diameter round bottles, so that the production line can get the best efficiency. The automatic alternate feeding mechanism not only ensures the rapidity of feeding, but also ensures the continuity of feeding, which greatly improves the production efficiency of the labeling machine, which is convenient and practical.