The economic quantity procurement control method refers to a procurement cost control method that replenishes the procurement according to the specified quantity when the inventory quantity drops to the predetermined minimum inventory quantity (purchase point). When the inventory drops to the order point (also known as the reorder point), an order for the goods is immediately issued according to the predetermined order quantity. After the delivery period, the order is received, and the inventory level rises. Companies adopting the procurement control method must predetermine the order point and order quantity. The order quantity is usually determined according to the economic batch method, that is, the economic batch when the total inventory cost is the lowest is the order quantity for each order. Economic quantitative procurement has a profound impact on production enterprises. Economic and quantitative procurement saves the company's procurement costs and operating costs.