Data collection and management are carried out for the inventories of raw coal, chemical raw materials and chemical products in the coking production process. Raw coal inventory is used to manage raw coal purchase quantity, inventory quantity, consumption, estimated service days and other data; The chemical raw material inventory manages the purchase, inventory and consumption of chemical raw materials; Chemical product inventory manages the inventory, output and sales volume of chemical products. Through the collection and management of these inventory data, the whole process traceability of inventory data during coking production is realized.