High-speed opened box machine carton store used horizontal, can at any time added empty carton, without downtime, save time, improve efficiency; high-speed opened box machine structure design once completed carton sucking box, and opened box, and forming, and folding late, and back cover, opened box processes; high-speed opened box machine used cam continuous system, and mechanical running precise; high-speed opened box machine forming and the seal box used no segment speed control, can arbitrary adjustment speed, save work.