The automatic corrugated board unloading cart system consists of an unloading cart and pneumatic board-stopping gates, designed for automatic transfer of corrugated board stacks onto pallets. Through precise positioning and unloading control, cut boards are neatly stacked onto wooden, plastic, or metal pallets in accordance with preset specifications. The unloading cart system replaces traditional manual palletizing, enabling seamless connection from the production line to warehouse logistics and significantly reducing labor costs and board damage. It has become a core solution for high-capacity carton plants to improve loading efficiency and reduce labor intensity.