The carton flow rack is also called roller rack, and the inventory is moved using gravity. One side is for replenishment and another side is picking. The carton will flow from the replenishment side to the picking side through the rollers on the inclined rolling bed, and the storage efficiency is increased. The carton flow rack is commonly used in order-picking of Distribution Centers and production assembly lines as a buffer storage. When supplied with electronic tag, our product can realize the information management of the inventory.