JD.com's self-operated model means that JD.com has its own warehouses all over the country. JD.com first puts the manufacturer's goods into JD.com's self-operated model warehouses in various places. When customers place an order, the goods are directly shipped from the nearest JD.com self-operated warehouse, so that the goods can be delivered to the customer at the fastest speed. In addition, JD.com's self-operated warehouses strictly inspect the goods received from the manufacturers, which can ensure the quality of the goods.