An order production method and device are provided. The method may include: dividing an order into a first sub-order and a second sub-order (201); determining a target site for delivery of the product combination (202); determining a first required time length for transporting a main product from a first warehouse to the target site and a second required time length for transporting promotional product of each second sub-order from a corresponding second warehouse to the target site (203); and determining, on the basis of the first required time length and the second required time length, a delivery time for delivering the main product from the first warehouse and a delivery time for delivering the promotional products from the second warehouse, to ensure that the time when the main product arrives at the target site is not later than the time that the promotional products arrive at the target site (204).