The present disclosure provides a method of accumulating order-goods, including: acquiring a collection order queue; acquiring a collection order from the collection order queue, assigning a first slide to the collection order, and sending goods in the collection order to the first slide in response to a presence of a first slide in an idle state, wherein the first slide only allows sending of goods in one collection order at one time; and activating a second slide in response to a predetermined condition being satisfied, wherein the second slide allows simultaneous sending of goods in a plurality of collection orders. The present disclosure further provides a system of accumulating order-goods, an electronic apparatus, a computer-readable storage medium, and a device of accumulating order-goods.