The invention relates to an electronic commerce supply chain management system, comprising a purchasing management unit, a marketing management unit, an order-receiving management unit, a warehousing management unit, an authority management unit and a system management unit, wherein the electronic commerce supply chain management system performs unified and coordinated management on the purchasing, marketing, order-receiving, warehousing, settlement, authority-controlling, basic information, and internal and organizational structures of the system of commodities, and completes the corresponding function by each executing unit, so that the purchasing, marketing, warehousing and inventory become very clear; the electronic commerce supply chain management system does not only save a lot of manpower and material resources, but also shortens a large amount of process, and optimizes the picking, allocation and delivery procedures, so that the user saves a lot of staff and express costs; and the electronic commerce supply chain management system further greatly shortens the delivery cycle, and improves the delivery efficiency, so that the user can complete the whole logistics procedure from purchasing to delivering of the commodities more rapidly and frugally.