The high-speed horizontal cartoning machine is suitable for unpackaged products or small-packaged products to be automatically packed into transportation packages. It has the functions of carton forming (or opening the carton) and boxing. Its working principle is to push the products into the carton in a horizontal direction according to a certain arrangement and quantity, and close or seal the opening of the box. The equipment occupies a small area, and one person can operate the unpacking, packing and sealing stations. Effectively save labor costs and equipment management costs for customers, greatly improving production efficiency. This machine is suitable for medicine, food, daily chemical and other light industry industries.